A kind of Intelligent terminal for Internet of things and its method for controlling power supplyTechnical field
The invention belongs to Intelligent terminal for Internet of things field more particularly to a kind of industrial Internet of Things, agriculture Internet of Things, long-rangeIt monitors, the Intelligent terminal for Internet of things with plc automation control ability of video monitoring.
Background technique
In Intelligent terminal for Internet of things field, it is desirable that intelligent terminal has internet of things functional, is all much in existing intelligenceCommunication module, locating module are added in terminal-based, in the scene for needing to position in real time, such as the batch risk of financing lease productIt in control, not only needs to monitor geographical location in real time, it is often necessary to carry out real-time video monitoring to the use state of equipment.ForIncrease risk control ability, also need that independent video monitoring apparatus is added, in industrial Internet of Things, agriculture Internet of Things, it is also necessary toThere is the acquisition function of the information such as temperature humidity air pressure.
In existing technical solution, using plc as intelligent terminal be it is a kind of it is common by the way of, plc is in industrial automationIn be widely used, have control interface abundant.In order to make plc that there is human-computer interaction function, it is often necessary to external independent touchingTouch display screen；In order to realize communication positioning, it is also necessary to communication module and locating module be added；In order to have the information such as temperature humidityAcquire function, it is also necessary to various sensor modules be added；In order to realize video monitoring function, independent video acquisition dress is addedIt sets.
In realizing prior art, discovery currently existing scheme is had the following problems:
1. mostly using in ready-made plc scheme, single plc is at high cost, is not suitable for batch and disposes；
2. appealing plc scheme itself without communication positioning function, needs to increase independent communication, locating module, further increaseCost；Between communication, locating module and plc by the way of separating, connected with 485 serial ports, integrated level is not high, and is unfavorable forStablizing for communication module uses, and is easy to interfere；
3. appeal plc scheme also needs that independent video acquisition device is added, the communication between plc is inconvenient；
4. appealing in plc scheme, using independent touch display screen, handle chip use is not the master control core of intelligent terminalPiece, but the main control chip of touch display screen itself is used, cost is further increased, when not using touch display screen,Just lose the function of display information, acquisition user's input information；
5. appealing in plc scheme, information collection function is weaker, is typically only temperature sensor interface；
6. appealing in plc scheme, when dispatch from foreign news agency is not powered, communication module can not work, intelligent terminal can not real time communication it is fixedPosition, poor reliability even if joined battery module, and the bulk supply to entire intelligent terminal and communication module, and are not havingIn the case of having dispatch from foreign news agency, communication module and acquisition module is generally only needed to work, intelligent terminal unreasonable using bulk supply modeStandby very short using the time in the case where no dispatch from foreign news agency, the reliability that intelligent terminal uses is low；
7. in existing method for managing power supply, it is often necessary to judge that each module is with complicated algorithm, circuit or logical conditionNo to need work, to close the power supply for not needing the module of work, the power supply management method of this mode undoubtedly increases objectThe complexity of networking intelligent terminal circuit, also increases the calculation amount of Intelligent terminal for Internet of things main control chip, is unfavorable for Internet of ThingsThe stable operation of other modules of intelligent terminal.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, withIt is fully understood from the purpose of the present invention, feature and effect.
Summary of the invention
In the appeal defect in view of the prior art, technical problem to be solved by the invention is to provide a kind of Internet of Things intelligenceCan terminal and its method for controlling power supply, the Intelligent terminal for Internet of things be integrated with communication module, locating module, sensor module,Numerous modules such as video acquisition module become separate type and integrate into modularization under the premise of guaranteeing each functions of modules, resist dryImmunity, reliability and stability are strong, be highly suitable for Internet of Things remotely monitor, the risk control of financing lease product batch, automobileThe business such as safety, security protection.Method for controlling power supply proposed by the present invention passes through the power-off power supply for effectively managing each module, has saved electricityEnergy；Each circuit module is reduced because of the lasting aging probability caused by heating that is powered, extends the service life of each module；It is losingWhen going dispatch from foreign news agency, the stand-by time of the Intelligent terminal for Internet of things battery is rationally extended because of economize on electricity, but improve reliability andStability.The Intelligent terminal for Internet of things energy-saving and emission-reduction, cost performance are high.
A kind of Intelligent terminal for Internet of things of the invention, component part include: main control chip and input module, output mouldBlock, serial port module, multiple sensor module, display touch screen interface, communication module, locating module, Ethernet interface, wifi mouldBlock, bluetooth module, power module, multi-channel video capturing module, the main control chip and input module, output module, serial ports mouldBlock, multiple sensor module, display touch screen interface, communication module, locating module, Ethernet interface, wifi module, bluetooth mouldBlock, power module, the connection of multi-channel video capturing module.
Preferably, the main control chip, is integrated with multichannel io, uart, spi, adc interface, support display touch screen interface,Ethernet interface, digital camera interface, for signal processing and operation, storage program.
Optionally, the display touch screen interface do not access display touch screen when, by other terminals such as mobile phone with it is describedIntelligent terminal for Internet of things by bluetooth module, communication module, wifi module, Ethernet interface carry out communication realize display information,Acquire the function of user's input.
Preferably, the power module is powered by booster circuit, reduction voltage circuit, battery, battery charger, dispatch from foreign news agency batterySelection circuit, multiple switch turning circuit, battery voltage detection circuit composition, for providing electricity to the Intelligent terminal for Internet of thingsEnergy, power management.
Preferably, the multiple switch turning circuit of the power module, each switch conduction circuit and the master control corePiece connection, by switch conduction circuit can individually give the input module, the output module, the multiple sensor module,The communication module, the locating module, the multi-channel video module for power supply.
It should be noted that above-mentioned switch conduction circuit is connect with the io of main control chip mouth, by the main control chipThe on-off of io mouthfuls of level height control switch turning circuit.
Preferably, the output module includes multiple-channel output point, and every road output point is controlled by switch conduction circuit and outputDevice composition, switch conduction circuit is connect with described main control chip io mouthfuls, by the high low state control of main control chip io mouthfuls of the levelThe on state of switch conduction circuit processed, to control the on state of o controller, o controller type includes crystalPipe output, silicon-controlled output and relay output.
Preferably, the input module includes multichannel input point, and every road input point is by switching value input circuit and switchs defeatedInbound port composition, switching value input circuit are connect with described main control chip io mouthfuls, pass through switching value input circuit, switch input terminalThe on state of mouth is converted into the high low state of main control chip io mouthfuls of level, for acquiring the on state of input port.
Preferably, serial port module, including multi-channel serial port, using dedicated serial ports transceiving chip, per serial ports all the way with it is describedUart all the way mouthfuls of connection of main control chip, serial ports transceiving chip type includes but is not limited to: 485 serial ports, max232 serial ports, will485 serial ports, max232 serial interface data switch to the uart serial data of the main control chip, be used for serial data transmission.
Optionally, 485 serial ports can be used for connecting frequency converter, various sensor transducers etc., further enhance the objectThe control of networking intelligent terminal, sensor data acquisition ability.
Preferably, the multiple sensor module, the type per sensor module all the way includes but is not limited to temperature, wetDegree, air pressure, pressure sensor, wherein sensor module can be customized to use interface form or integrated sensor according to demandThe mode of mould group, interface form use sensor special A/D conversion chip and the main control chip i2c or spi interface to connectIt connects, interface end is responsible for accessing sensor probe, is realized by the dedicated A/D conversion chip of this kind of sensor by sensor analog quantityDigital quantity is converted to, the main control chip is sent to using i2c agreement and realizes sensor data acquisition；Using integrated sensor mouldWhen group mode, sensor module itself connect with the main control chip i2c or spi interface, passes through already provided with sensorThe agreements such as i2c transmit sensing data.
Preferably, the communication module supports FDD LTE, TDD LTE, WCDMA using dedicated communication module chip,The communication of TDS-CDMA, GPRS the whole network open network is connect with the uart serial ports of the main control chip, scalable to lead to for 5g networkLetter supports a-gps positioning, for realizing networking and a-gps positioning function.
Preferably, the locating module supports the positioning of gps/ Beidou bimodulus, with institute using dedicated locating module chipThe uart serial ports connection for stating main control chip, the position of the locating module is obtained by the uart serial ports of the main control chipData.
Preferably, the Ethernet interface supports 100,000,000 or more ethernet features, is used for sending and receiving data.
Preferably, the wifi module supports IEEE802.11b/g wireless standard, using dedicated wifi module corePiece is connect with the main control chip uart interface or spi interface, is used for sending and receiving data.
Preferably, the bluetooth module, using dedicated bluetooth module chip, with the main control chip uart interface orSpi interface connection, for being carried out wireless communication with mobile phone, wireless sensor.
Preferably, multi-channel video capturing module, including multi-channel video capturing, supported per video acquisition module all the way spi orPerson i2c communication, is connected with the main control chip, and is used for video monitoring.
It should be noted that the booster circuit is used to cell voltage being upgraded to the suitable operating voltage of modules；InstituteReduction voltage circuit is stated for dispatch from foreign news agency voltage to be reduced to the suitable operating voltage of modules；The battery charger and the masterChip io mouthfuls of connection of control, charges the battery for controlling whether；The dispatch from foreign news agency battery power supply selection circuit, for outside havingIt is powered when electric using dispatch from foreign news agency, is powered when without dispatch from foreign news agency using battery, while connect with described main control chip io mouthfuls, supplied for acquiringPower mode is dispatch from foreign news agency power supply or battery power supply；The multiple switch conduction circuit is connected with the main control chip, for controllingThe on state of the power supply circuit of modules；The battery voltage detection circuit is connect with described main control chip adc mouthfuls, is usedIn the voltage data of acquisition battery.
It should be noted that the switch conduction circuit, switching value input circuit, booster circuit, reduction voltage circuit, battery,Battery charger, dispatch from foreign news agency battery power supply selection circuit, switch conduction circuit, battery voltage detection circuit are general circuit skillArt does not illustrate here.
Preferably, the method for controlling power supply of the intelligent terminal, comprising the following steps:
After Intelligent terminal for Internet of things starting, powered selection circuit according to dispatch from foreign news agency battery, powered if dispatch from foreign news agency, then to battery intoRow charging, stops charging when electricity is greater than the set value；It powers if battery, then according to configuration cuts to stating input module, defeatedThe power supply of module, multiple sensor module, multi-channel video capturing module out retains the power supply of communication module, locating module；
Periodically server is sent by data such as the geographical location of internet-of-things terminal, powering mode, state of charge；
When server judges that powering mode is powered for battery and state of charge is lower than setting value, sending to user client is neededAccess dispatch from foreign news agency prompt information.
The selection circuit it should be noted that above-mentioned dispatch from foreign news agency battery is powered, connect with described main control chip io mouthfuls, is able to detectIt powers to current powering mode for dispatch from foreign news agency power supply or battery, while above-mentioned multiple switch turning circuit and the main control chipIo mouthfuls of connections, by the high low state of io mouthfuls of output levels, each switch conduction circuit can control respective modules respectivelyThe on state of power supply circuit, thus appeal according to configuration cuts to state input module, output module, multiple sensor module,The power supply of multi-channel video capturing module retains the power supply of communication module, locating module, for the main control chip io mouthfuls of output electricityThe configuration of flat height.
The beneficial effects of the present invention are:
Intelligent terminal of the invention is integrated with control function abundant, and expensive plc can be replaced to be used for automation control,Numerous modules such as communication module, locating module, sensor module, video acquisition module are integrated with simultaneously, are guaranteeing each mouldUnder the premise of block function, becomes separate type and integrated into modularization, anti-interference, reliability and stability are strong, are highly suitable for Internet of ThingsNet the business such as long-range monitoring, the risk control of financing lease product batch, automotive safety, security protection.Power supply control proposed by the present inventionMethod is by simple switch conduction circuit, when dispatch from foreign news agency disappears, by being pre-configured with the power supply automatically cut off to other modules,The power supply for retaining communication module, locating module, simplifies and needs to judge whether each module needs work in other technologies schemeAlgorithm, circuit or logical condition deterministic process, saved electric energy；Each circuit module is reduced simultaneously because of the lasting heating that is poweredGenerated aging probability, extends the service life of each module；When losing dispatch from foreign news agency, the object is rationally extended because of economize on electricityThe stand-by time of networking intelligent terminal battery, and improve reliability and stability.The Intelligent terminal for Internet of things energy-saving and emission-reduction,Cost performance is high.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, withIt is fully understood from the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is overall system block diagram of the invention；
Fig. 2 is power module block diagram of the invention；
Fig. 3 is power supply control frame diagram of the invention；
Fig. 4 is method schematic diagram of the invention.
Specific embodiment
As shown in Figure 1, a kind of Intelligent terminal for Internet of things, comprising: main control chip 11 and input module 12, output module 13,Serial port module 14, multiple sensor module 19, display touch screen interface 16, communication module 17, locating module 20, Ethernet interface15, wifi module 18, bluetooth module 21, power module 23, multi-channel video capturing module 22, the main control chip 11 and input mouldBlock 12, output module 13, serial port module 14, multiple sensor module 19, display touch screen interface 16, communication module 17, positioningModule 20, Ethernet interface 15, wifi module 18, bluetooth module 21, power module 23, multi-channel video capturing module 22 connect,Wherein:
Stm32 f429 chip can be used in the main control chip 11, is integrated with multichannel io, uart, spi, adc interface, supports aobviousShow touch screen interface, Ethernet interface, digital camera interface, for signal processing and operation, storage program；
The input module 12, including variable connector input point may be designed as including the input of 3 road high speed photo couplings and 3 way switch lightCoupling input, further includes switching value input circuit per input point all the way, connect with the io mouth of the main control chip 11, defeated for judgingEnter the high low state of level；
The output module 13, including multiple-channel output point, are exported using transistor, for controlling the on off operating mode of output；
The serial port module 14, including 485 serial ports are connect with the uart mouth of the main control chip 11, are used for using special chipSerial data transmission, inverter communication etc.；
The multiple sensor module 19, including No. 5 temperature sensors acquisition, can be used max6675 chip, with the master control coreThe uart mouth of piece 11 connects, and interface end can access K-type electroheat pair, all the way pressure acquisition, using hx711 chip, with the master controlThe uart mouth of chip 11 connects, and interface end can access pressure sensor；
The display touch screen interface 16, connect with the main control chip 11, can external 800*600 resolution ratio display screen and touchingScreen is touched, for showing that information, acquisition user input information；
The communication module 17 is connect with the uart mouth of the main control chip 11, supports FDD LTE, TDD LTE, WCDMA,The communication of TDS-CDMA, GPRS the whole network open network supports a-gps positioning, for realizing networking and a-gps positioning function；
The locating module 20 is connect with the uart mouth of the main control chip 11, the positioning of gps/ Beidou bimodulus is supported, for obtainingGeographic position data；
The Ethernet interface 15 supports 100,000,000 or more ethernet features, is used for sending and receiving data；
The wifi module 18 is supported IEEE802.11b/g wireless standard, is connect with the uart mouth of the main control chip 11, usesIn sending and receiving data；
The power module 23 stablizes permanent power supply, power management for providing for entire module；
The bluetooth module 21 is connect with the uart mouth of the main control chip 11, wireless for carrying out with mobile phone, wireless sensorCommunication；
The multi-channel video capturing module 22 supports multi-channel video capturing, is used for video monitoring.
Further, as shown in Fig. 2, the power module 23 is by booster circuit 24, reduction voltage circuit 25, battery 26, batteryCharging circuit 27, dispatch from foreign news agency battery power supply selection circuit 28, multiple switch turning circuit 29, battery voltage detection circuit 30 form,For providing electric energy to the Intelligent terminal for Internet of things.
Further, as shown in figure 3, the multiple switch turning circuit 29 of the power module, each switch conduction electricityRoad is connect with the main control chip 11, can individually give input module 12, output module 13, multichannel to sense by switch conduction circuitDevice module 19,17 pieces of mould of communication, locating module 20, multi-channel video module 22 are powered.
Further, the method for controlling power supply of the intelligent terminal, as shown in Figure 4, comprising the following steps:
Step 41, it after the Intelligent terminal for Internet of things starting, according to dispatch from foreign news agency battery power supply selection circuit, powers if dispatch from foreign news agency, thenIt charges the battery, stops charging when electricity is greater than the set value；If battery power, then according to configuration cuts to state inputThe power supply of module, output module, multiple sensor module, multi-channel video capturing module retains the confession of communication module, locating moduleElectricity；
Step 42, server periodically is sent by data such as the geographical location of internet-of-things terminal, powering mode, state of charge；
Step 43, when server judges that powering mode is powered for battery and state of charge is lower than setting value, user client is givenEnd, which is sent, needs to access dispatch from foreign news agency prompt information.
It should be noted that above-mentioned dispatch from foreign news agency battery power supply selection circuit 28 is connect with the io mouth of the main control chip 11, energyEnough detect current powering mode be dispatch from foreign news agency power supply or battery power supply, while above-mentioned multiple switch turning circuit 29 with it is describedThe io mouth of main control chip 11 connects, and by the high low state of io mouthfuls of output levels, each switch conduction circuit can be controlled respectivelyThe on state of the power supply circuit of respective modules processed, thus appeal according to configuration cuts to state input module 12, output module 13,The power supply of multiple sensor module 19, multi-channel video capturing module 22 retains the power supply of communication module 17, locating module 20, isConfiguration to the io mouth output level height of the main control chip 11.
Intelligent terminal of the invention is integrated with control function abundant, and expensive plc can be replaced for automatingControl, while numerous modules such as be integrated with communication module, locating module, sensor module, video acquisition module, described in guaranteeUnder the premise of functions of modules, becomes separate type and integrated into modularization, anti-interference, reliability and stability are strong, are highly suitable for objectThe business such as network remote monitoring, the risk control of financing lease product batch, automotive safety, security protection.Confession proposed by the present invention is automatically controlledMethod processed is by simple switch conduction circuit, when dispatch from foreign news agency disappears, by being pre-configured with the confession automatically cut off to other modulesElectricity retains the power supply of communication module, locating module, simplifies and need to judge whether each module needs work in other technologies schemeAlgorithm, circuit or logical condition deterministic process, saved electric energy；Each circuit module is reduced simultaneously because lasting be powered risesAging probability caused by temperature extends the service life of each module；When losing dispatch from foreign news agency, rationally extended because of economize on electricity described inThe stand-by time of Intelligent terminal for Internet of things battery, and improve reliability and stability.The Intelligent terminal for Internet of things energy conservation subtractsRow, cost performance are high.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art withoutIt needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the artPersonnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's ideaTechnical solution, all should be within the scope of protection determined by the claims.