CN203120156U - Lost Person Search and Rescue System Based on Passive Assistance Sensing Network - Google Patents

Abstract

The utility model discloses a lost people search and rescue system based on a passive assistance perception network. The system comprises a search and rescue system, the passive assistance perception network and a lost distress signal generator. A search and rescue apparatus and the lost distress signal generator carry out communication through the passive assistance perception network. The passive assistance perception network is formed by a wireless sensor network. The wireless sensor network comprises sensor nodes and a sink node. Each sensor node is a passive node. A first energy conversion device is arranged in the sensor nodes. The system of the utility model possesses pertinence. Any operation of the lost people is not needed. Search and rescue efficiency and accuracy are increased. Reliability of the system is increased too.

Description

The personnel that wander away search and rescue system based on passive assistance sensing network

Technical field

The utility model relates to a kind of personnel that wander away search and rescue system based on passive assistance sensing network, belongs to communication technique field.

Background technology

The elderly and children are the colonies that need be guarded, the elderly is because physiological reason, memory generally descends, and the avenue complexity, make the elderly that memory is bad, especially suffer from patient's outdoor activity of senile dementia, careless slightlyly just may wander away or come to harm, and can't in time obtain relief.In addition, because modern life rhythm is accelerated, children have bigger activity space, and children travel outdoors and often occur wandering away or injured situation.How to realize to old man, children loss or injured after real-time search and rescue, become numerous guardians and be concerned about very much it also is the eager problem that solves of wishing.

Existing based on GPS﹠amp; It serves as to use object with the more weak crowd of self-protection ability that the individual of GPRS follows the trail of monitor system, cooperates numerical map, needs to import the destination when user is lost in equipment and carries out path navigation; The guardian can send order to equipment by monitor supervision platform, feeds back current location with short message mode to tutorial mobile phone after equipment receives orders.

Traditional search and rescue system of wandering away mainly relies on radio-circuit to realize, guardian's termination is received the signal of children under guardianship's end signal reflector emission, and judges the signal strength signal intensity size, when signal strength signal intensity is reported to the police during less than set point; But this scenario-frame is simple, volume is little, is subject to disturb but be suitable for distance direction, signal short, that can't differentiate children under guardianship.In addition, call for help or walk to miss the season when children under guardianship are in danger, children under guardianship's button that can independently push for emergency, remote annunciator sends voice prompt, cries for help with alarm sound, but can only use in the remote controller effective range.

Therefore, arise at the historic moment based on the monitor system of wireless sensor network location, it can monitor children under guardianship's positional information in real time according to corresponding node deployment scheme by the located in connection algorithm.But the search and rescue device that is based on wireless sensor network is not pointed, so long as distress call can both receive by search and rescue device and show, can produce interference, efficient and accuracy rate that influence is searched and rescued for the known personnel's of wandering away search and rescue; Sensor node generally all is that source node is arranged, and has battery that energy is provided, and when depleted of energy, distress call then can't be transferred to search and rescue device, network failure, the reliability of reduction whole system; In addition, the equipment that the existing personnel of wandering away the carry personnel oneself that need wander away carry out trigger action, just can send out a signal for help, but as the personnel of wandering away because self reason or environment reason can't independently operate the time, are can influence search and rescue result.

The utility model content

The purpose of this utility model is, a kind of personnel that wander away search and rescue system based on passive assistance sensing network is provided, and it is pointed, need not any operation of the personnel of wandering away, improves search efficiency and accuracy rate, improves the reliability of system.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of personnel that wander away search and rescue system based on passive assistance sensing network, comprise search and rescue device, passive assistance sensing network and the distress message generator of wandering away, search and rescue device, the distress message generator of wandering away carry out communication by passive assistance sensing network, passive assistance sensing network is made up of wireless sensor network, this network comprises sensor node and sink node, wherein each sensor node all is passive buses, is provided with first energy conversion device in the sensor node.

In the aforesaid personnel that the wander away search and rescue system based on passive assistance sensing network, search and rescue device comprises search and rescue signal transmitter, identifier, display unit, and identifier is connected with display unit, is equipped with antenna on search and rescue signal transmitter, the identifier.

In the aforesaid personnel that the wander away search and rescue system based on passive assistance sensing network, search and rescue device also comprises the equipment mark code input unit that is connected with identifier.

In the aforesaid personnel that the wander away search and rescue system based on passive assistance sensing network, the distress message generator of wandering away comprises second filter, second energy conversion device and the signal generation apparatus that connects in turn, is equipped with antenna on second filter, the signal generation apparatus.

In the aforesaid personnel that the wander away search and rescue system based on passive assistance sensing network, signal generation apparatus is provided with the device identification code memory.

In the aforesaid personnel that the wander away search and rescue system based on passive assistance sensing network, sensor node comprises sensing unit, first processor module and first wireless communication module that connects in turn, sensing unit, first processor module and first wireless communication module all are connected with first energy conversion device, and sensor node also comprises first filter that is connected with first energy conversion device.Sensing unit comprises transducer and analog-digital conversion function module.

In the aforesaid personnel that the wander away search and rescue system based on passive assistance sensing network, sink node in the wireless sensor network comprises second processor module, second wireless communication module and power module, second processor module, second wireless communication module all are connected with power module, and second processor module is provided with memory.

Compared with prior art, the passive assistance sensing network in the utility model need not extra energy, and it is only just started working when receiving search and rescue signal; Sensor node generally is perception and Information Monitoring, and send the information that perceives to the sink node, calculate concrete positional information by the sink node according to location algorithm, its advantage is: this passive assistance sensing network can redeploy as required, also can on existing other radio sensing network nodes, realize by the additional-energy modular converter, wide coverage, hop count is less in the message transmitting procedure, and is also less demanding to the communication capacity of search and rescue device.

For guaranteeing the reliability of system, be provided with power supply in the distress message generator of wandering away; Be conserve energy, this signal generator is not worked when having search and rescue signal, consider to need not in this programme the personnel of carrying simultaneously and carry out any operation, therefore adopt search and rescue signal to trigger distress message generator work, namely when having search and rescue signal, utilize the high level of energy conversion device output as triggering signal, trigger signal generator is started working.

This system is pointed, has only the distress call identical with the equipment mark code information of warning personnel input just can be responded and show by search and rescue device, in order to avoid the interference of useless distress call influences search efficiency and accuracy rate.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of embodiment of the present utility model;

Fig. 2 is the structural representation of search and rescue device among a kind of embodiment of the present utility model;

Fig. 3 is the structural representation of distress message generator of wandering away among a kind of embodiment of the present utility model;

Fig. 4 is the structural representation of sensor node among a kind of embodiment of the present utility model;

Fig. 5 is the structural representation of sink node among a kind of embodiment of the present utility model.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Embodiment

Embodiment of the present utility model: a kind of personnel that wander away search and rescue system based on passive assistance sensing network, as shown in Figure 1, comprise search and rescue device, passive assistance sensing network and the distress message generator of wandering away, search and rescue device, the distress message generator of wandering away carry out communication by passive assistance sensing network, passive assistance sensing network is made up of wireless sensor network, and this network comprises sensor node and sink node.

As shown in Figure 2, search and rescue device comprises search and rescue signal transmitter, identifier, display unit, and identifier is connected with display unit, is equipped with antenna on search and rescue signal transmitter, the identifier; Search and rescue device also comprises the equipment mark code input unit that is connected with identifier.

As shown in Figure 3, the distress message generator of wandering away comprises second filter, second energy conversion device and the signal generation apparatus that connects in turn, is equipped with antenna on second filter, the signal generation apparatus; Signal generation apparatus is provided with the device identification code memory.

As shown in Figure 4, sensor node all is passive buses, be provided with energy conversion device in the sensor node, sensor node comprises sensing unit, first processor module and first wireless communication module that connects in turn, sensing unit comprises transducer and analog-digital conversion function module, sensing unit, first processor module and first wireless communication module all are connected with first energy conversion device, and sensor node also comprises first filter that is connected with first energy conversion device.

As shown in Figure 5, the sink node comprises second processor module, second wireless communication module and power module, and second processor module, second wireless communication module all are connected with power module, and second processor module is provided with the location algorithm memory.

Operation principle: wander away unique equipment mark code information of the entrained distress message generator of wandering away of personnel of the human-computer interaction interface input of warning personnel by the equipment mark code input unit, such as 0A2CDF17Hex, the search and rescue signal transmitter produces the search and rescue signal (ultra-high frequency signal) of designated frequency band and utilizes antenna to launch.Sensor node in the passive assistance sensing network receives the search and rescue signal of assigned frequency, first filter on it filters out the wireless signal of other frequency ranges, first energy conversion device is electric energy with the search and rescue signal power conversion, and the electric energy that the first wireless communication module utilization produces carries out perception and the information of node and transmits.After the distress message generator of wandering away receives the search and rescue signal of assigned frequency, second filter on it filters out the wireless signal of other frequency ranges, second energy conversion device reception search and rescue signal and output dc voltage are as triggering signal, trigger signal generator sends the distress call of designated frequency band, and this distress call comprises equipment mark code information.First wireless communication module of sensor node receives the distress call that distress message generator sends, send distress call to the sink node, second processor module of sink node reads the location algorithm of storing in the location algorithm memory, calculate the more specific location information at the distress message generator place of wandering away in real time, this positional information sends to search and rescue device by second wireless communication module.Identifier reads the equipment mark code information of input, 16 systems are converted to 2 systems to be identified, judge whether the equipment mark code that receives is identical with the equipment mark code of warning personnel input, if it is identical, display unit will show this positional information, in order to locate the personnel's that wander away particular location fast; If inequality, search and rescue device is not done response to the positional information that receives and is handled, and continues to send search and rescue signal, till the equipment mark code that receives is correct.

Claims (7)

Translated fromChinese

1.一种基于无源协助感知网络的走失人员搜救系统，其特征在于：包括搜救装置、无源协助感知网络和走失呼救信号发生器，搜救装置、走失呼救信号发生器通过无源协助感知网络进行通讯，无源协助感知网络由无线传感器网络组成，该无线传感器网络包括传感器节点和sink节点，其中每个传感器节点均是无源节点，传感器节点中设有第一能量转换装置。1. A search and rescue system for lost persons based on a passive assistance sensing network, characterized in that it includes a search and rescue device, a passive assistance sensing network and a lost distress signal generator, and the search and rescue device and the lost distress signal generator pass through the passive assistance sensing network For communication, the passive assisted sensing network is composed of a wireless sensor network, the wireless sensor network includes sensor nodes and sink nodes, wherein each sensor node is a passive node, and the sensor node is provided with a first energy conversion device.2.根据权利要求1所述的基于无源协助感知网络的走失人员搜救系统，其特征在于：搜救装置包括搜救信号发射机、识别器、显示装置，识别器与显示装置连接，搜救信号发射机、识别器上均设有天线。2. The search and rescue system for lost persons based on passive assisting perception network according to claim 1, characterized in that: the search and rescue device includes a search and rescue signal transmitter, an identifier, and a display device, the identifier is connected to the display device, and the search and rescue signal transmitter , The identifier is equipped with an antenna.3.根据权利要求2所述的基于无源协助感知网络的走失人员搜救系统，其特征在于：搜救装置还包括与识别器连接的设备标识码输入装置。3. The search and rescue system for lost persons based on passive assistance sensing network according to claim 2, characterized in that the search and rescue device further includes an equipment identification code input device connected with the identifier.4.根据权利要求1或3所述的基于无源协助感知网络的走失人员搜救系统，其特征在于：走失呼救信号发生器包括顺次连接的第二滤波装置、第二能量转换装置和信号发生装置，第二滤波装置、信号发生装置上均设有天线。4. The search and rescue system for lost persons based on passive assistance sensing network according to claim 1 or 3, characterized in that: the lost and distress signal generator includes a second filtering device, a second energy conversion device and a signal generating device connected in sequence The device, the second filtering device and the signal generating device are all provided with antennas.5.根据权利要求4所述的基于无源协助感知网络的走失人员搜救系统，其特征在于：信号发生装置上设有设备标识码存储器。5. The search and rescue system for lost persons based on passive assistive sensing network according to claim 4, characterized in that: the signal generating device is provided with an equipment identification code memory.6.根据权利要求5所述的基于无源协助感知网络的走失人员搜救系统，其特征在于：传感器节点包括顺次连接的传感单元、第一处理器模块和第一无线通信模块，传感单元、第一处理器模块和第一无线通信模块均与第一能量转换装置连接，传感器节点还包括与第一能量转换装置连接的第一滤波装置。6. The lost person search and rescue system based on passive assisted sensing network according to claim 5, characterized in that: the sensor node comprises a sequentially connected sensing unit, a first processor module and a first wireless communication module, and the sensor node The unit, the first processor module and the first wireless communication module are all connected to the first energy conversion device, and the sensor node further includes a first filter device connected to the first energy conversion device.7.根据权利要求6所述的基于无源协助感知网络的走失人员搜救系统，其特征在于：无线传感器网络中的sink节点包括第二处理器模块、第二无线通信模块和电源模块，第二处理器模块上设有存储器。7. The search and rescue system for lost persons based on passive assisted sensing network according to claim 6, characterized in that: the sink node in the wireless sensor network comprises a second processor module, a second wireless communication module and a power supply module, the second The processor module is provided with memory.

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