CROSS-REFERENCE TO RELATED APPLICATIONSThis application claims the priority benefit of U.S. Provisional Application No. 61/044,276, U.S. Provisional Application No. 61/044,285, and U.S. Provisional Patent Application No. 61/044,307, each of which was filed on Apr. 11, 2008.
BACKGROUNDThis document relates to delivering commands to a vehicle to perform a task, and more particularly to utilizing a wireless device to deliver a command to a vehicle to perform a task.
As wireless communications have improved, wireless communication implementations have expanded beyond merely personal communications. One area where wireless communications have been implemented recently is in vehicular based communications, specifically communication systems where information relating to a specific vehicle are collected and transmitted from the vehicle to a central collection agency. One example of this implementation is the OnStar® system.
OnStar functions by integrating a wireless communication device into a vehicle along with a global positioning system (GPS) and several additional sensors. A driver or passenger in the vehicle uses this device to directly contact an OnStar operator for various services, e.g., obtaining directions or information about the area the vehicle is in based upon the GPS. OnStar also provides a collision detection feature where the OnStar operator is contacted if the vehicle has been in a crash. For example, a vehicle sensor may monitor whether a vehicle's airbags have deployed which could indicate a crash situation such as a frontal collision, a side impact, a rollover, etc. In the event of airbag deployment, an OnStar operator may be contacted, and the OnStar operator may follow a set of protocols such as contacting the police or emergency medical services.
Typical vehicle based wireless communication systems, such as OnStar, have their drawbacks. One such drawback is the communication device is integrated into the vehicle, i.e., the device is not removable from the vehicle for portable use in other applications. This requires each vehicle covered by the system to have an individual communication device. Another drawback is difficulty in converting vehicles without communication systems or upgrading the systems as technologies become obsolete. For example, all analog versions of OnStar were deactivated on Feb. 18, 2008. This required all OnStar users with the analog system in their vehicle to either update to a digital version of OnStar, or end their service for that particular vehicle. Similarly, many collision detection systems detect airbag deployment as an indication of a collision, however, many older vehicles do not include airbags. Additionally, these communications devices work with vehicles having an integrated electronic diagnostic system (e.g., a series of sensors and other electronics used to monitor the current status of a vehicle), and are not compatible with vehicles without such systems, e.g., a bicycle.
SUMMARYBefore the present methods are described, it is to be understood that this invention is not limited to the particular systems, methodologies or protocols described, as these may vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present disclosure which will be limited only by the appended claims.
It must be noted that as used herein and in the appended claims, the singular forms “a,” “an,” and “the” include plural reference unless the context clearly dictates otherwise. Thus, for example, reference to a “vehicle” is a reference to one or more vehicles and equivalents thereof known to those skilled in the art, and so forth. Unless defined otherwise, all technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art. As used herein, the term “comprising” means “including, but not limited to.”
In one general respect, the embodiments disclose a method of commanding a vehicle to perform a task. The method includes the steps of establishing a first wireless connection between a first wireless device and a vehicle communications system creating a data transfer network between the first wireless device and the vehicle communications system, transmitting a command from the first wireless device to the vehicle communications system via the data transfer network, receiving the command at the vehicle communications system, and instructing, by the vehicle communications system, an appropriate vehicle system to perform a task based upon the command.
In another general respect, the embodiments disclose a method of commanding a vehicle to perform a task. The method includes the steps of establishing a first wireless connection between a first wireless device and a vehicle communications system creating a data transfer network between the first wireless device and the vehicle communications system, establishing a second wireless connection between a second wireless device and the first wireless device, transmitting a command from the second wireless device to the first wireless device, transmitting the command from the first wireless device to the vehicle communications system via the data transfer network, receiving the command at the vehicle communications system, and instructing, by the vehicle communications system, an appropriate vehicle system to perform a task based upon the command.
BRIEF DESCRIPTION OF THE DRAWINGSVarious embodiments of the invention are described herein by way of example in conjunction with the following figures.
FIG. 1 illustrates an exemplary wireless communications network;
FIG. 2 illustrates various embodiments of a vehicle based communications system;
FIG. 3 illustrates a more detailed view of various embodiments of the vehicle based communications system ofFIG. 2;
FIG. 4 further illustrates various embodiments of the vehicle based communications system ofFIG. 2;
FIG. 5 illustrates various embodiments of a portable vehicle based communications system;
FIG. 6 illustrates a flow chart showing an exemplary process for sending commands to a vehicle; and
FIG. 7 illustrates a flow chart showing an exemplary process for monitoring a vehicle.
DETAILED DESCRIPTIONIt is to be understood that at least some of the figures and descriptions of the invention have been simplified to focus on elements that are relevant for a clear understanding of the invention, while eliminating, for purposes of clarity, other elements that those of ordinary skill in the art will appreciate may also comprise a portion of the invention. However, because such elements are well known in the art, and because they do not necessarily facilitate a better understanding of the invention, a description of such elements is not provided herein.
FIG. 1 illustrates an exemplarywireless communications network100. Thewireless communications network100 may include aserver102 configured to control access to the wireless communications network, as well as control the routing and flow of data between devices connected to the wireless communications network. Variouswireless access points104a,104band104cmay be operably connected to theserver102. It should be noted that asingle server102 is shown for exemplary purposes only. Two or more servers may be used such as web servers, file servers, FTP servers, cell phone carrier servers, vehicle diagnostic servers, etc. The multiple servers may be arranges such that load balancing is incorporated, resulting in shared processing across the multiple servers. The connections between theserver102 and the wireless access points104a-cmay be wired connections (e.g., fiber optic or coaxial cable), or the connections may be wireless depending on the application and infrastructure of thewireless communications network100.
Wireless access points104a-cmay be short range wireless access points such as a city-wide WI-FI network (e.g.,wireless access point104a), or larger range wireless access points such as cellular or radio signal towers (e.g.,wireless access points104band104c). Various wireless devices106a-emay be operably connected via a wireless communications link to the wireless access points104a-c.The wireless devices106a-emay include various data transmitting and receiving devices such as personal digital assistants (PDAs) or smart phones (e.g.,wireless devices106aand106d), cellular phones (e.g.,wireless devices106cand106d), or a wireless communications device having either a built in wireless modem or network communications card (e.g.,wireless device106e). Thewireless device106emay be, for example, integrated into a vehicle equipped with an on-board vehicle diagnostic system, and configured to communicate between the vehicle's diagnostic system and the remote server (e.g., server102) running and managing a vehicle monitoring system. Similarly, aremote device106fmay establish a direct connection toserver102 without utilizing one of wireless access points104a-c.It should be noted thatremote device106fmay be a desktop PC or PDA that may establish a direct wired connection withserver102 as well as a wireless device that may establish a direct wireless connection withserver102.
It should be noted that the various components of thewireless communications network100 are shown merely by way of example, and may be substituted based upon the topology and application of the wireless communications network. For example, additional wireless devices may be used such as notebook computers and hand-held data transfer devices without telephone capabilities.
FIG. 2 illustrates an exemplaryvehicle communications system200. Thevehicle communications system200 may be an integrated system for measuring various operational parameters and performance related statistics and information for a vehicle and reporting these statistics to a wireless device via a wireless connection. A user using the wireless device may, in response to a notification from thevehicle communications system200, respond via the wireless device and provide further instructions. Thevehicle communications system200 may be adapted beyond notification purposes, however, as the vehicle communications system may be used for information gathering and reporting as well.
Thevehicle communications system200 may include an On-Board Monitoring and Control (OBMC)system202. The OBMC202 may be electrically connected to anaccelerometer204. Theaccelerometer204 may measure any G forces being applied to the vehicle in each of 3 axes (i.e., X, Y and Z axes). By measuring three axes of applied G forces, theaccelerometer204 may provide collected data that may be analyzed to determine what type of event has occurred to cause the G forces. For example, in the event of a head-on crash, by combining the measurements from each the X, Y and Z axis, theOBMC202 may determine the severity of the crash by summing each of the three measured G forces. The information collected by theaccelerometer204 may be reported to theOBMC202 periodically, and theOBMC202 may monitor the data for any significant changes that would indicate a serious event such as a crash. TheOBMC202 may be electrically connected to a series ofadditional sensors206. Theadditional sensors206 may monitor additional operational and performance related statistics and may periodically report these operational and performance related statistics to theOBMC202. Examples of theadditional sensors206 may include speed monitors, temperature gauges (e.g., thermocouples), fuel gauges, a global positioning system (GPS), etc.
TheOBMC202 may monitor the information reported by theadditional sensors206 for any significant changes. For example, a quick change in engine temperature may indicate a serious engine problem. TheOBMC202 may continuously, or periodically and regularly, monitor the information being reported from theadditional sensors206. TheOBMC202 may output the monitored information to a wireless device via a wireless transceiver, in this example,Bluetooth transceiver208. A message containing the monitored information may be transmitted from theBluetooth transceiver208 to a wireless device (not shown inFIG. 21 but described in more detail with relation toFIG. 4) a Bluetooth connection. The message containing the monitored information may be formatted accordingly for interpretation by software running on the wireless device. At the wireless device, the received information may be analyzed by the software running on the wireless device to determine if there are any problems or issues. In the event of a problem or issue, an alert may be displayed to a user of the wireless device indicating the current state of the vehicle.
As used herein, the term Bluetooth may include any low power, wireless personal area network in which two or more electronic device that are in close proximity to each other may connect and exchange information. Thus, the present invention is not limited to the current Bluetooth standard but includes any devices that are designed for short range, low power, wireless communications. Examples of such devices include device designed to operate according to IEEE 802.11 standards as well as the ZigBee® standard for small, low powered digital radios operating according to IEEE 802.15.4 standards. To provide for additional features, the term Bluetooth may also include higher powered cellular links such as, for example, GSM/GPRS or CDMA type interfaces.
In addition to receiving information about the current state of a vehicle on the wireless device, a user of the wireless device may send a notice to thevehicle communications system200 instructing theOBMC202 to perform a task. For example, if the user of the wireless device wants to remotely unlock the vehicle, the user may send a command to unlock the doors from the wireless device to thevehicle communications system200 throughBluetooth transceiver208. TheBluetooth transceiver208 may relay this request to theOBMC202. TheOBMC202 may process the request and forward a signal to a vehicle electronics and computer bus210 to anappropriate vehicle system212 to unlock the vehicle. Similarly, the user may send a request to open or close the vehicle's windows. Upon receiving the request, theOBMC202 may forward an appropriate signal over the vehicle electronics and computer bus210 to theappropriate vehicle system212 for opening or closing the vehicle's windows. The interaction of a wireless device and thevehicle communications system200 will become more apparent in the descriptions of the additional figures.
Thevehicle communications system200 may further include apower supply214. Thepower supply214 may be either internal or external to the system. Internal power supplies may be, for example, either disposable or rechargeable batteries. An external power supply may be supplied by the vehicle battery or another appropriate source. In the event an external power supply is used, it may be desirable to have an internal battery in case vehicle battery power is lost (e.g., if the cables are severed in a crash).
FIG. 3 illustrates a more detailed view of theOBMC202 ofFIG. 2. TheOBMC202 may include aprocessor302, an Input/Output (I/O)interface304,a set offirmware306, and amemory308. TheOBMC302 may also include a real time clock (not shown) for indicating the time an event occurs. Theprocessor302 may be electrically connected to each of the I/O interface304, thefirmware306 and thememory308. Theprocessor302 may function as an overall controller for theOBMC202, running diagnostic, monitoring and control software and processing and storing results from the vehicle sensors (e.g., theaccelerometer204 and theadditional sensors206 ofFIG. 2). In addition to theprocessor302, the I/O interface304 may be electrically connected to theaccelerometer204, theadditional sensors206, theBluetooth transceiver208 and the vehicle electronics and computer bus210 fromFIG. 2. The I/O interface304 may function as a gateway between the vehicle sensors (e.g., theaccelerometer204 and the additional sensors206), theBluetooth transceiver208 andprocessor302. Data measured or detected by the vehicle sensors may be sent to the I/O interface304 which transfers the information toprocessor302 for processing.
Thefirmware306 may store any software run byprocessor302. The software may be split into multiple modes such as moving and non-moving software modules, depending on the application of the system. While the vehicle is moving,processor302 may load the moving software modules fromfirmware306. The moving modules may monitor the output of the vehicle sensors (primarily the accelerometer204) for crash detection. Theaccelerometer204 may report acceleration data in each of the X, Y and Z axes. When a certain acceleration threshold is exceeded, e.g., 5Gs, the moving software module may detect a crash and theprocessor302 may output an appropriate message to the I/O interface304 for transmission to the wireless device through theBluetooth transceiver208.
Similarly, data obtained from theadditional sensors206 may be monitored and, when appropriate, output to the wireless device. For example, if the internal temperature of the vehicle exceeds a certain threshold, e.g. 100° F., a message may be sent to the wireless device indicating the interior temperature of the vehicle.
Memory308 may be used to store information collected by the vehicle sensors and sent to theOBMC202. Examples of information stored may include vehicle speed, outside temperature, and theaccelerometer208 measurements. This information may later be reported to the wireless device in the event of a crash or similar occurrence. For example, if a crash is detected, a user may look at the information stored in thememory308 to determine what the vehicle speed was at the time of the crash. The information may also be stored merely as a data log, which may be used to prepare a report pertaining to an individual trip with information such as mileage travelled, gas mileage, data and time.
FIG. 4 illustrates an additional embodiment includingvehicle communications system200 fromFIG. 2. Avehicle400 may include thevehicle communications system200. Thevehicle communications system200 may be operably connected to awireless device402. In this example,wireless device402 may be a mobile phone connected to thevehicle communications system200 via a Bluetooth connection, communicating with the vehicle communications system viaBluetooth transceiver208. When a user entersvehicle400, the user may sync thewireless device402 and thevehicle communications system200 according to standard Bluetooth synching procedures. Thevehicle communications system200 may include a unique Bluetooth ID for use by thewireless device402 in establishing a Bluetooth connection. Once the Bluetooth connection is established, the user of thewireless device402 may communicate with thevehicle communications system200 as discussed above with respect toFIG. 2 andFIG. 3.
Wireless device402 may generally be a multi-functional, portable device that is not integrated with the vehicle. For example, it may be a mobile phone (e.g.,wireless devices106band106cofFIG. 1), laptop computer, personal digital assistant (PDA) with wireless communications capabilities (e.g.,wireless devices106aand106dofFIG. 1), etc. The wireless device includes equipment for communicating with both the wireless personal area network (e.g., Bluetooth) and a public switched telephone network (PSTN) or public Internet Protocol (IP) based packet switched network. Software may be installed on thewireless device402 that provides an interface for the wireless device to send and receive messages from thevehicle communications system200. The software may include a variety of modules for providing a user interface for communicating with thevehicle communications system100. Examples of software modules may include crash detection software modules, command software modules (for sending commands to communications system, e.g., unlock the doors), and monitoring software modules.
Due to current limitations in Bluetooth technology, there is a limited distance from thevehicle400 that thewireless device402 can maintain a Bluetooth connection with thevehicle communications system200. For example, once a user moves more than 10-100 meters (depending on the Bluetooth version/class) from thevehicle400, the Bluetooth connection is lost. To avoid this lost connection, thewireless device402 may be left in the vehicle (or in close proximity to the vehicle) where the wireless device may function as a relay device. Thewireless device402 is left powered on maintaining the Bluetooth connection with thevehicle communications system200. Now, the user may accesscommunications system200 from another wireless device, such as aremote wireless device404. Theremote wireless device404 may connect to a wireless communications network403 (e.g.,wireless communications network100 ofFIG. 1), and communicate directly withwireless device402 over the wireless communications network.Wireless device402 may act as a relay by receiving the message from remote wireless device404 (ex. lock the doors) via thewireless communications network403 and relaying the message to thevehicle communications system200. Conversely, a user may input the contact information for theremote wireless device404 into thewireless device402. Then, any messages issued from the vehicle communications system200 (ex. a high temperature alert) is relayed by thewireless device402 over thewireless communications network403 toremote wireless device404.
It should be recognized thatwireless device402 may be any device that can connect to thevehicle communications system200 as well as receive messages from theremote wireless device404. To continue the above example, a Bluetooth enabled cell phone may be used as well as a cellular data modem (e.g.,wireless device106eofFIG. 1). Similar to a cell phone, the cellular data modem may or may not be integrated into the vehicle. It should also be recognized that some or all the functions ofremote wireless device404 may also be performed byremote device405.Remote device405 may be an additional wireless device such as a PDA, or a wired device such as a desktop computer in communication with wireless communications network403 (e.g.,remote device106fofFIG. 1).
By utilizing a relay wireless device, the range of thevehicle communications system200 may be extended to anywhere the user may access theremote wireless device404 and send a message to thewireless device402 viawireless communications network403. For example, if a person is on vacation and they have left their car parked at the airport and have left a wireless device in the car, they may receive messages from the vehicle communications system or send messages to the vehicle communications system via the relay wireless device from anywhere in the world.
It should be noted the arrangement of components inFIG. 4 is shown merely by way of example, and the components may be arranged in several manners. For example, components ofcommunications system200 such as theaccelerometer204 may be integrated intowireless device402.
FIG. 5 illustrates avehicle500 with a portablevehicle communications system502. The portablevehicle communications system502 may be non-integrated with thevehicle500 and may be moved from one vehicle to another. For example, a user may move portablevehicle communications system502 from vehicle400 (inFIG. 3) tovehicle500. This allows a user, for example, to move the system from their car to a four-wheel drive all terrain vehicle. Similar to thevehicle communications system200, the portablevehicle communications system502 may include an on-board monitoring and control (OBMC)system504, anaccelerometer506, aBluetooth transceiver508 and apower supply510. As before, theaccelerometer506 may be a3 axis accelerometer measuring G forces in each of the X, Y and Z axes. Theaccelerometer506 may collect G force information and reported the collected information to theOBMC504. TheOBMC504 may process this information and output it via theBluetooth transceiver508 to thewireless device512 via a standard Bluetooth connection. Thepower supply510 may be either an internal or external power supply. An internal supply may, for example, be either rechargeable or disposable batteries, while an external supply may be power supplied by the vehicle, for example, through an adapter plugged into a cigarette outlet.
The portablevehicle communications system502 functions similarly to the description ofvehicle communications system200 above, with one potential exception being there may be limited sensors used with the portable vehicle communications system. As the portablevehicle communications system502 may be transferable from vehicle to vehicle, the amount of vehicle specific information that may be collected may be limited. It should be noted, however, that additional sensors may be included such as temperature sensors as discussed above with respect toFIG. 2.
It should also be noted that the example inFIG. 5 with thewireless device512 connected via a Bluetooth connection to the portablevehicle communications system502 is shown merely by way of example. This arrangement of components may be arranged in several manners. For example, theaccelerometer506 may be included in thewireless device512, and utilize the power supply and processing power of the wireless device, resulting in a single, self-contained unit the user may move from vehicle to vehicle, thus resulting in a personal protection device compatible with any vehicle the user is operating.
The vehicle communications system (both thevehicle communications system200 and the portable vehicle communications system502) described above may be utilized for multiple objectives. One such objective may be crash detection and reporting. One software module for installation on a user's wireless device may be a crash detection software module. This module may communicates with thevehicle communications system200 or the portablevehicle communications system502 and monitors for any occurrence of crashes. There may be multiple major types of crash occurrences. Two examples may include moving and non-moving crash occurrences. In a moving crash, the vehicle is traveling at some speed when the crash occurs, e.g., driving down the highway or backing a car out of a parking place and hitting another car. In a non-moving crash, the vehicle is not traveling when a crash occurs, e.g., a parked car being hit by a moving car. The multiple types of crash occurrences may be handled differently by the vehicle communication system and will be examined individually. For simplicity, the following discussion will be limited to thevehicle communications system200. However, it should be noted that the following discussion is equally applicable to portablevehicle communications system502.
In a moving crash, theaccelerometer204 may measure the G forces at the moment of impact during the crash and report the G-force information to theOBMC202. TheOBMC202 may forward this information via theBluetooth transceiver208 to the crash detection software on the user's wireless device. Depending on the severity of the crash (as determined by the measured G forces), the crash detection software may send a message to a user's wireless device inquiring if the user is hurt. For example, a message reading “ARE YOU OK” may be displayed on the user's wireless device with two options for answering, “YES” or “NO”. If the user selects “NO”, or does not respond in a certain amount of time, the crash detection software may automatically instruct the wireless device to contact a call center to dispatch help. Additionally, if the vehicle is equipped with a GPS system, or otherwise has access to GPS information (e.g., if the wireless device has an integrated GPS), the crash detection software may include GPS information indicating the location of the vehicle as well in the message to the call center. If a user answers “YES”, no automatic call may be made by the crash detection software.
One feature of the present invention is the portability of the wireless device. This may allow one wireless device to be used in multiple vehicles. In the scenario where the wireless device is being used in a different vehicle, the crash detection software may allow a user to customize any crash detection parameters. For example, a user may select the vehicle they are travelling in from a selection screen on the wireless device, and the crash parameters are adjusted accordingly for that vehicle.
For example, when a user is traveling in a car, the acceleration limits may be less to indicate a serious crash than if the same user is traveling in a four-wheel drive off-road vehicle. In the car, the acceleration threshold may be 5Gs, but in the off-road vehicle the acceleration threshold may be set at 7 or 10Gs. By allowing the software to adjust acceleration limits based upon vehicle type, a user may carry the same wireless device regardless of the vehicle they are operating, and thus access the same vehicle communications system in any vehicle.
Another feature of the crash detection software is that in the event of a crash, the crash detection software may send text messages to any wireless devices selected by the user. Similarly, emails may be sent to any selected email addresses. The software, provided the system is utilizing GPS data, may also include the nearest street address in these messages to aid a recipient in locating where the crash occurred.
It should be noted that the portablevehicle communications system502 ofFIG. 5 discussed above may provide a portable crash detection system. By including an accelerometer in a portable device, a user may carry the device from vehicle to vehicle. For example, if the user is riding a bicycle and has the portable crash detection device, in the event of a serious crash the device may register the G forces of the crash and, as above, notify others via text message or email that the user has been in an accident.
After a predetermined period during which the vehicle does not move, the communications system's monitoring and control system (e.g., OBMC202) may automatically shift into non-moving mode. If the user of the vehicle has left the vehicle, a relay wireless device like thewireless device402 described inFIG. 4 may be used to relay messages. If a non-moving crash occurs, the crash sensor may send a notification to the relay wireless device. The relay wireless device then may send a text message to any numbers programmed by the user to be notified. The text message may include if the vehicle is being tampered with, if the vehicle is being towed, or how severe an impact was to the vehicle.
Similar to sending commands from the OBMC to a user's wireless device, a user may send commands to the OBMC from their wireless device.FIG. 6 illustrates a flow chart showing an exemplary process for sending commands to a vehicle. Initially, the user may establish600 a wireless connection (e.g., a Bluetooth connection as discussed above) between a wireless device and the vehicle communication system. Once the wireless connection is established, a user may input602 a specific command into the wireless device. This may be performed by selected a command from a list of predetermined command choices stored on the wireless device, or by typing a command into the wireless device. Once the command is inputted by a user, the wireless device may transmits604 the command to the vehicle communications system. Once the vehicle communications system receives the command, the command may be performed606 by the vehicle communication system. Additionally, security options may be included in the system if a user is accessing the system remotely. For example, the user may have to enter a specific user password/biometric ID or other unique identifier.
One example of a command transmitted from a user's wireless device to a vehicle is to lock/unlock the vehicle. If, for example, a user locks their keys in their car but has their wireless device, the user may simply send a message from the wireless device to the OBMC to unlock the car. If, by chance, the user left their wireless device in the car as well, the user may send a message (including, if needed, the user password) from another wireless device to their wireless device in the car, and the device in the car may relay the message to the OBMC to unlock the doors. Similarly, a user may lock their car with their wireless device. If there is a relay wireless device in the vehicle, a user may lock the vehicle from anywhere by sending a message to the relay phone in the car and having the phone in the car relay the message to the OBMC to lock the vehicle.
Similar commands may be sent from a user's wireless device to the OBMC to start the car, activate the alarm, sound the horn, flash the headlights, turn on the heat or air conditioning, or open the windows. The vehicle communication system may also use a bi-directional control built into the vehicle to control additional electrical systems not on the vehicle bus. For example, the communications system may command a relay to turn on in the vehicle. This relay may drive/control another device in the vehicle. For example, in some vehicles, the door unlock command is not on the vehicle bus and thus cannot be activated with a command as described above. There are three types of door unlock types: 1) those that have a connection on the vehicle data bus and will respond with the ignition key in an off position; 2) those that have a connection on the vehicle data bus, but will not respond with the ignition key in an off position; and 3) those that do not have a message on the bus, but do have electrical door locks. Type 1 will function as already described above. Type 2 may use additional circuitry to simulate the ignition key is in the on position, then the unlock command may be sent. Type 3 may also use additional circuitry, but different than the circuitry for Type 2. A direct unlock circuit may be used to send the command to the vehicle locks, bypassing the vehicle electrical bus.
Another objective of the above described vehicle communications system may be vehicle monitoring. Above and beyond simple monitoring for the occurrence of crash events, the system may be used to monitor many other aspects of the vehicle and its performance.
FIG. 7 illustrates a flow chart showing an exemplary process for monitoring a vehicle (such as for the above discussed crash detection). Initially, the user establishes700 a wireless connection (e.g., a Bluetooth connection as discussed above) between a wireless device and the vehicle communication system. Once the connection is established, the vehicle communications system may monitor702 any data received from the sensors (e.g., the three axis accelerometer). Once the vehicle communications system receives data from the sensors, the vehicle communications system may determine704 whether an event has occurred or not. If no event has occurred, the process may return to monitoring702 sensors for any event occurrences. If an event has occurred, a message may be transmitted706 to the wireless device indicting an event has occurred.
One type of monitoring may be basic vehicle maintenance. By using additional sensors or monitoring information collected from the vehicle electronics and computer bus, various vehicle systems may be monitored for scheduled or required maintenance. For example, tire pressure may be monitored and a user notified when a tire's pressure has dropped below a certain threshold. Similarly, oil life, battery charge, alternator performance, brake systems, air bag status, odometer, coolant temperature, emissions, fuel miles per gallon, and many other vehicular systems may be monitored. The system may issue various alerts that may be maintenance related (e.g., change coolant, check oil), parameter based such as out of range (e.g., low battery voltage, low oil pressure), calendar based (e.g., annual inspection due, car payment due), mileage based (rotate tires, change oil), or a combination of the various types.
Another maintenance feature may be essentially taking a snapshot, or a listing of parameters, of the vehicle when the vehicle is operating at peak performance, and storing this snapshot in the wireless device or at a centralized server (e.g., theserver102 inFIG. 1) for later comparison in the future. Then, by comparing the current performance of the vehicle against the snapshot of the vehicle's parameters at peak performance, the current performance of the various vehicle systems may be quickly determined. Additional snapshots of the vehicle may be taken and stored either in the wireless device or at the server to provide a historical data set for the vehicle showing the performance of the vehicle over a certain time period (e.g., between oil changes).
A real-time snapshot may also be taken of the vehicle, and sent via a wireless device to either the vehicle manufacturer or to a maintenance facility. The snapshot may be analyzed and any required maintenance for the vehicle may be determined. In addition to a snap shot, the vehicle communications system may provide for live remote monitoring of data and information relating to the current performance levels of a vehicle.
By monitoring various performance parameters of the vehicle, additional features may be performed by the wireless device. For example, the wireless device may provide specific performance such as acceleration times (e.g., 0-60 MPH), braking times (e.g., 60-0 MPH), quarter mile distance times, horsepower/torque being produces by the engine, maximum speed, etc. By increasing the resolution of the sensors, more accurate measurements may be achieved. For example, using a higher resolution odometer may result in a more accurate measurement of distance. By integrating vehicle speed with the measurement of distance, distances such as the quarter mile may be accurately measured. Once these measurements are collected (e.g., acceleration times, distance times, etc.) a user may access a central server (e.g., the server102) through their wireless device and post their measurements to a specific web site where the times, speeds, etc. may be compared to other vehicles. Additional information may be included with the reported data such as vehicle type or location to further customize the data posted to the web site. Another feature of performance monitoring is that results for various performance tests may be determined from recorded data rather than running each test in real time separately. For example, a user may just drive their car while the system continuously records performance information. After the user is done driving, software may analyze the recorded data and present the results to the driver. For example, during analysis, the software may determine three occasions where the vehicle accelerated from zero to sixty MPH and presents the results to the driver. Similarly, two occasions may be determined where the car did a quarter mile speed test. By providing performance analysis on recorded data, the user may be free to concentrate on driving and not on initializing tests.
By using similar parameters as discussed above with respect to vehicle performance, the wireless device may also function as a trip computer. Similar to most GPS devices, the wireless device may monitor distance traveled, distance remaining (provided the user has entered a destination), current vehicle speed, estimated arrival time based upon current speed, average speed, estimated arrival time based upon average speed, etc.
The wireless device may also be used to alert a user as to their leasing summary (if the vehicle is leased). Using collected parameters from the OBMC, the wireless device may display to the user various statistics relating to the vehicle lease, for example, average miles driven per month, mile left of lease, lease end date, estimated date miles on lease will be exceeded, estimated number of miles the lease will be exceeded by, and how much it will cost to pay for the number of miles the least will be exceed by.
The wireless device may also be used to monitor and report the weather conditions where the vehicle is. Examples of reported parameters may include inside temperature, outside temperature, maximum temperature, minimum temperature, wind chill, and barometric pressure. In response to these reports, the user may take action to adjust the parameters. For example, if it is reported the inside temperature is higher than the user would like, the user may send a command to the vehicle to open the windows. Similarly, if the inside temperature drops too far, the user may send a command to close the windows or to turn on the heat.
A second type of monitoring may be monitoring other operators of a vehicle, for example, monitoring a teenage driver. If a parent leaves a wireless device connected to the communications system in the vehicle, reports may be sent to the wireless device indicating the performance of the vehicle while it is being operated by a teenage driver. Once the vehicle is returned, a parent may review the reports on the device to see how the teenage driver operated the vehicle. Or, for real time updates, a parent may leave a relay wireless device in the car, the wireless device may relay real-time performance data related to the operation of the vehicle to s server, and the server may send updates directly to the parent while the teenage driver is operating the vehicle.
By including additional sensors, parents may monitor additional parameters for a teenage driver. For example, sensors may be placed in each seat to determine how many passengers are in the vehicle. In many vehicles, this information is already determined by the air bag deployment systems. Sensors in the seats may determine if the seats are occupied, and this information may be sent via the vehicle electronics and computer bus. By monitoring this data, the vehicle communication system may monitor the number of occupants in the vehicle as well. Having additional people in the car is a leading cause of teenage accidents as the driver is distracted by the other people. By monitoring the number of people in the vehicle, a parent may also monitor the driving performance of the teenage driver during this time. By looking at other parameters, such as speed, braking, and the accelerometer data, a parent may see whether the teenage driver was speeding, braking hard, or swerving in the vehicle.
Similarly, a sensor may be used monitor stereo volume. Similar to having additional passengers, loud music is a leading cause of teenage accidents as the driver may be distracted and may be unable to hear warning signals from other vehicles such as horns or loud braking. Stereo volume may also be obtained in many vehicles from data sent over the vehicle electronics and computer bus.
Another feature included with teenage driver monitoring may be global position monitoring, provided the vehicle has a GPS. Based upon global position monitoring, a parent may monitor several parameters of vehicle performance during operation by a teenage driver. One parameter a parent may monitor may be the position of the car itself. A parent may set up a “geo-fence” in the monitoring software which is an outlined area on a map. Anytime the vehicle goes outside this area, an alert may be sent to the parent's wireless device. Similarly, a parent may take an instant snapshot showing where the vehicle is at any one moment in time. Also, the OBMC in the vehicle may continuously collect and send GPS data such that a complete map of where the vehicle was driven may be created. A parent may view this map on their wireless device, or the information may be sent to a server and the parent may access a web site where the map is displayed.
Additional sensors that may be included in the vehicle for monitoring teenage occupants are alcohol and smoke detectors. Alcohol detectors measure the air quality and can detect the presence of alcohol particles on a scale of parts-per-million. Smoke detectors function the same way, monitoring the air quality for smoke particles. As smoke detector technology increases, additional parameters may be detected as well, e.g., what specifically is being smoked.
It should be realized that these monitoring features do not merely apply to teenage drivers. Teenage drivers are shown merely by way of example. A similar system may be used for a rental car company to monitor how a vehicle is driven when rented by a specific person. Also, in the event of a crash, various parameters may be analyzed (e.g., speed, braking, stereo volume levels, alcohol sensor) to determine how the vehicle was being operated at the time of the crash. In the case of rental vehicles, rental companies may chose not to use the full functionality of the vehicle communications system. In this case, various events may be recorded in the device and retrieved on vehicle check-in. For example, if the vehicle has been in a minor accident a record of the G force event will be present in the recorded data.
A similar monitoring system may be used for monitoring a fleet of delivery trucks as is used for monitoring teenage drivers. Additional features may be included though, such as information specific to individual trips taken by a single vehicle. Information collected may include number of trips, miles per trip, total miles driven, stops per trip, time between stops, time taken for each stop, and geographical information such as route taken per trip.
Yet another example of a monitoring system may be a traffic network monitoring system. By receiving or sharing data between multiple vehicle communications systems, either by communicating directly between vehicle communications systems (e.g., via individual wireless devices) or by sending periodic reports to a central reporting agency and receiving a report on a wireless device, traffic and road conditions, weather and crash data may be monitored by anyone using the vehicle communications system. For example, all drivers in a certain city may share traffic, weather and road condition information such as what speed are vehicles travelling on a certain road, or how long are the delays on a certain highway. Speed may be automatically transmitted based on a periodic time and/or distance and sent to the central reporting agency where the information is stored on a server. The weather data and crash data also may be sent to the central reporting agency and similarly stored. As users drive, their position may be sent to the central reporting agency and any messages that apply to the vehicle (geographically specific) may be automatically uploaded from the server and sent from the central reporting agency to the vehicle. Traffic alerts then may be provided to the vehicle at certain intervals, e.g. at 1, 5, 10, 25 miles ahead as a warning. For example, the driver may be warned of a crash ahead in 25 miles at Exit 199. Alerts may be presented to the driver as either a text alert or an audio alert. An alert manager controls the types of alerts given to the driver, which ones will have audio, and which are only text. For example, based upon a driver requesting audio alerts regarding police, the system may present the audio alert “Police ahead in 5 miles, 20 minutes ago”. The alert manager may also allow a user to determine a radius/distance notification and age of information parameters. Similarly, the alert manager may allow a driver to prioritize alerts. For example, a driver may prioritize a crash ahead over all other notifications. A user may also request an on-demand traffic report. A screen/mechanism is also provided for the user to click on an issue/problem and the issue type and GPS position is sent to the central reporting agency server. For example, weather related data such as fog, ice, snow, heavy rain, white-out, flooded, washout or tornado may be requested by a user and the user will receive an updated report from the central reporting agency specific to the geographic location of the user's vehicle. Other items such as police, traffic camera, accident, disabled vehicle, construction start and end, bad potholes, fire, etc. may be reported to a user. By providing a screen for users, this type and location of information may be shared easily. Users may also use this information to request assistance for themselves. By selecting an appropriate service (e.g., emergency, fire, medical, tow truck, etc.), a message is sent with a location indicator to the appropriate service. The information displayed on the screen may be color coded as well to indicate how recent the information is. For example, information received less than five minutes ago may be green, information five to fifteen minutes old may be yellow, and information older than fifteen minutes may be red. Not only are the geographic and traffic data used for alerts, but for creating maps to analyze traffic patterns, congestion, etc. The weather data may also be used for further analysis, such as by creating a temperature profile by analyzing all reported temperatures. Similarly, by analyzing all barometric pressures reported, a weather map may be constructed.
While several embodiments of the invention have been described herein by way of example in the above figures and accompanying disclosure, those skilled in the art will appreciate that various modifications, alterations, and adaptations to the described embodiments may be realized without departing from the spirit and scope of the invention defined by the appended claims.