CN105979481A - Outdoor rescue system and application method thereof - Google Patents

Abstract

The invention belongs to the technical field of communication, and specifically provides an outdoor rescue system and a method for using the system. The system includes the transmitter used by the user and the relay station set up at a fixed position. There can be only one relay station in the system, or there can be multiple relay stations, which are determined according to the required coverage; the transmitter is carried by the user and used to communicate with the group Members contact and call for help in an emergency. When the user is in an emergency, the transmitter sends out the distress information, and the relay station receives the distress signal, and forwards the information to the rescue center and the user's distress object, thus providing double emergency insurance. The forwarding method of the relay station is realized through GSM, that is, the distress information is forwarded through the SMS or GPRS network; the installation location of the relay station needs to have signal coverage.

Description

A kind of outdoor rescue system and using method thereof

technical field

The invention belongs to the technical field of communication, and relates to an outdoor rescue system and a using method thereof.

Background technique

With the development of communication technology, mobile phones have become an essential tool for people's daily communication, especially with the development of the Internet and the popularization and coverage of 3G and 4G networks, mobile terminals have been closely connected and inseparable from people's lives. Although the current base station equipment covers a large area and can meet almost all the needs in daily life, the dependence on the base station determines that it cannot function well in emergency situations, especially in natural disasters, When the base station can no longer provide relay services due to other problems such as power system and network hardware equipment, the mobile phone will be unusable and the communication will be completely interrupted, which will bring great inconvenience to emergency rescue; In remote areas, the supplier considers the cost and the coverage of the base station is poor, especially in the deep mountains, it is very easy for the mobile phone to have no signal, and the communication interruption will make it impossible to communicate the situation of the outdoor sportsmen in time, and encounter accidents situation, even life-threatening. As a communication device that does not require the assistance of a base station, the walkie-talkie plays a prominent role in outdoor sports. The high-end walkie-talkies used by outdoor sportsmen have relatively complex functions, and it is difficult for ordinary users to get started, and the cost is high. The transmission distance and transmission effect of low-end devices will be greatly reduced. Moreover, the different walkie-talkies held by each person cannot be well unified and interconnected, resulting in relatively poor rescue effects and unable to meet the needs of rescue.

Aiming at this situation, the present invention provides an outdoor rescue system and a method for using the system. The system includes the transmitter used by the user and the relay station set up at a fixed position. There can be only one relay station in the system, or there can be multiple relay stations, which are determined according to the required coverage; the transmitter is carried by the user and used to communicate with the group Members contact and call for help in an emergency. When the user is in an emergency, the transmitter sends out the distress information, and the relay station receives the distress signal, and forwards the information to the rescue center and the user's distress object, thus providing double distress insurance. The forwarding method of the relay station is realized through GSM, that is, the distress information is forwarded through the SMS or GPRS network; the installation location of the relay station needs to have signal coverage.

Contents of the invention

The purpose of the present invention is to provide a communication system for emergency rescue, which can obtain the user's distress signal in time and carry out rescue, and at the same time, optimize the distress information, thereby improving communication efficiency.

For this reason, the present invention provides a kind of outdoor rescue system, comprises at least one transmitter and at least one relay station, and described transmitter is the equipment that is used for communication and sending distress message for user, has radio frequency transmitting module; Described relay station is used for It has a radio frequency receiving module to receive distress information and send out information; the relay station is set up on the top of a mountain with a high altitude outdoors, and the information is transmitted between the transmitter and the relay station through radio frequency;

The transmitter has a data generating module for obtaining local position coordinates and generating distress information sent to the relay station, and the data generating module is electrically connected to the radio frequency transmitting module;

The relay station has an information service module that can use a SIM card, communicates with other devices through the mobile phone base station, and the information service module is electrically connected to the radio frequency receiving module.

The above system also includes a rescue center, and the rescue center can be in the following two organizational forms,

(1) Personal mobile phone, receive the distress signal forwarded by the relay station, and contact a third-party organization for rescue;

(2) The third-party rescue agency has a dedicated SMS receiving alarm and GPRS data server.

In the above system, the distress information sent to the relay station is the position coordinates of the transmitter itself.

In the above system, the distress information further includes the information of the distress object.

In the above system, the information of the person calling for help is a phone number, and the information service module sends the calling for help information through a short message.

In the above system, the information service module sends out the distress data through GPRS.

In the above system, the information service module includes a GSM unit and a radio frequency unit, and the information can be forwarded through the GSM unit or the radio frequency unit.

The above system, the data generation module of the transmitter, obtains the local position coordinates as GPS coordinates, and the method for obtaining GPS coordinates is one of the following two ways,

(1) The data generation module itself has a GPS function, and obtains GPS coordinates through its own GPS unit;

(2) The data generation module has a communication unit capable of communicating with a third-party device with GPS function, and obtains GPS coordinates through the third-party device.

In the above system, the transmitter is a walkie-talkie.

The method for using the above system includes the following steps,

S1, the transmitter obtains its own location information, combines its own location information and the information of the rescue object into a distress message, and sends it out;

S2, the relay station receives the distress message sent by the transmitter;

S3, the relay station forwards the distress information to the rescue center through the information service module;

S4, the relay station analyzes the distress information, and obtains the position coordinates of the distress and the information of the distress object;

S5, sending the location coordinates of the rescue call and the information of the rescue center to the rescue call object.

The beneficial effects of the present invention are: through the relay station, the user's distress information can be obtained more sensitively, and the safety of the users within the coverage area can be better ensured; at the same time, the receiving sensitivity can be further improved through the combined Yagi antenna, ensuring Azimuth information reception. The user's distress information is sent to the rescue center and the rescue object through the GSM module at the same time to ensure that the distress information can be obtained in time and the reliability of the communication is high. Furthermore, if a larger coverage area is required, multiple relay stations can be used to provide coordinated services to increase the coverage area. Moreover, through the communication between the rescue object and the rescue center, the rescue efficiency can be improved and the user's safety can be guaranteed; it is of great significance.

The present invention will be further described below in conjunction with accompanying drawing.

Description of drawings

Figure 1 is a schematic diagram of an emergency rescue system for scenic spots in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a relay station in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an omnidirectional antenna according to an embodiment of the present invention;

Reference signs: 1. omnidirectional antenna; 2. receiving module; 3. MCU module; 4. GSM module; 5. power supply module.

detailed description

Example 1

An outdoor rescue system, especially suitable for rescue systems in scenic spots, includes a relay station set up at the highest position within the scenic spot and a transmitter used by users in the scenic spot. The transmitter is a walkie-talkie. The schematic diagram of the design of the rescue system is shown in Figure 1. With the relay station as the center, a Cartesian coordinate system is established, and the circular dotted line shown with the relay station as the center represents the coverage of the information received by the relay station, ensuring that the entire area of the scenic spot is covered.

As shown in FIG. 2 , it is a schematic structural diagram of a relay station. The relay station includes an omnidirectional antenna 1 composed of multiple Yagi antenna connections, a receiving module 2 for receiving distress information, an MCU module 3 for information processing, a GSM module 4 for forwarding received distress information, and a It is composed of a power supply module 5 that supplies power to the relay station. The distress information sent by the walkie-talkie enters the receiving module 2 after being received by the omnidirectional antenna 1; the receiving module 2 has a similar circuit structure to the walkie-talkie, and can demodulate the information sent by the walkie-talkie; The signal is input to the MCU module 3 for data analysis, converted into a fixed data format, and forwarded via the GSM module. The power module 5 is used to supply power to the relay station. FIG. 3 is a structural schematic diagram of an omnidirectional antenna.

When installing, install the relay station at the highest point of the scenic spot, generally at the peak of the highest peak. When installing, you need to ensure the signal at this point, that is, you need to ensure that there is a GSM signal at the installation position. Since the position of the peak is generally unattended, the power module 5 used is a combination of solar panels and lithium batteries, and automatically monitors the power supply, and sends the remaining power through the GSM module at a fixed time. rescue center. In the GSM module, the phone number of the rescue center is stored in advance, and the information is fixedly sent to the stored number.

When the user has an emergency in the scenic area and needs to call for help, the user needs to send an external call for help information, which is the information of his current location. Since only the location coordinates are sent, the rescue center can find the caller and carry out relevant rescue. Therefore, the user's walkie-talkie needs to have its own GPS function, or a communication unit that can communicate with a third-party device with GPS function. The device gets GPS coordinates. If the walkie-talkie has a GPS function, when an accident occurs, the user can obtain the GPS coordinates of the current location through the GPS module of the walkie-talkie, and send the GPS coordinates.

Within the range covered by the relay station, the relay station can obtain the user's GPS coordinates after receiving the user's distress information, so that the specific location of the user can be known; the distress information is directly sent to the rescue center through the GSM module 4. The purpose of doing this is to ensure The rescue center can receive the distress signal at the first time, and make rescue arrangements as soon as possible to avoid accidents.

If the walkie-talkie itself does not have the GPS function, but it has a Bluetooth unit that communicates with the mobile phone, it can establish a connection with the mobile phone and read the GPS data of the mobile phone to obtain the GPS information of the current location and realize emergency rescue.

In the above embodiment, the receiving module 2 used needs to demodulate the signal sent by the walkie-talkie. Since the technology of the walkie-talkie is relatively mature, the receiving module 2 can be equipped with a circuit similar to that of the walkie-talkie to receive and demodulate the signal of the walkie-talkie. For those skilled in the art, it is a technology that can be easily obtained and belongs to the known technology. MCU module, the processing module with STM32F103 produced by STMicroelectronics as the core is used here. This single-chip microcomputer integrates a wealth of on-chip and external hardware. Through the open data manual and its own integrated software library, the data splicing and format conversion are completed. is a common technique. The GSM module 4 adopts the mature SIM900 module on the market, and can directly complete the sending of information through the instruction operation of the MCU module. Relevant public information can be found on the Internet, which belongs to known technology. Of course, the GSM module here can also be other mature modules in the market such as WCDMA modules, which support SIM cards and can transmit information through mobile phone base stations. In addition to SMS, you can also send distress information through GPRS. The power module 5 adopts a combined structure of a lithium battery and a solar panel, which is used to improve the battery life of the entire relay station. The related circuit connection technology is also very mature and belongs to the known technology.

On the basis of the above embodiments, further, when the required coverage area is large enough, in order to ensure that the distress information is obtained in a timely manner, there may be hundreds, thousands or even tens of thousands of relay stations. The distress message is received in time and action is taken, and its specific implementation mode is the same as the principle of the above-mentioned embodiment. No further description here.

Example 2

On the basis of the above embodiments, further, a scenic spot emergency rescue system is proposed, including a relay station erected at the highest position within the scenic spot and a transmitter used by users in the scenic spot, the transmitter is a walkie-talkie. The design schematic diagram of the rescue system is also shown in FIG. 1 . With the relay station as the center, a Cartesian coordinate system is established. The circular dotted line shown with the relay station as the center represents the coverage of the information received by the relay station, ensuring that the entire area of the scenic spot is covered. The basic structure and form of the rescue system are the same as those in Embodiment 1, but when sending the distress message, the information to be sent is different and the processing method of the relay station is different.

In Embodiment 1, the distress message sent by the user only includes the GPS coordinates of the user, and does not specify the sender of the distress message. In practical applications, since family members or relatively close friends will roughly know the user's behavior trends, for example, when the user is on an outdoor adventure or playing, the family members are relatively vigilant and concerned, while the rescue center is in a state of tension for a long time, there may be Resulting in the failure of timely delivery of distress information, resulting in accidents.

Therefore, the help information sent by the user includes the information of the person calling for help, that is, the mobile phone number of the person calling for help. The mobile phone number of the emergency rescue object is stored in the walkie-talkie in advance, and the mobile phone number of the rescue object and the GPS coordinates are sent out together when an emergency call is made. Within the range covered by the relay station, the relay station receives the user's distress information, performs data demodulation, and obtains the user's GPS coordinates and the mobile phone number of the rescue object. On the one hand, the GPS coordinates of the distress call and the mobile phone number of the callee are sent to the call center, and at the same time, the GPS coordinates of the call for help and the contact information of the call center are sent to the caller.

Under normal circumstances, the user will set the mobile phone number of a relative or friend as the object of help, and at the same time send the emergency information and the phone number of the rescue center to the object. Contact the rescue center for help, double insurance to avoid accidents; second, enable the person calling for help to contact the rescue center in time, obtain the rescue situation in real time, and improve the efficiency of communication and rescue.

If the walkie-talkie itself does not have the GPS function, but it has a Bluetooth unit that communicates with the mobile phone, it can establish a connection with the mobile phone and read the GPS data of the mobile phone to obtain the GPS information of the current location and realize emergency rescue.

In the above embodiment, the receiving module 2 used needs to demodulate the signal sent by the walkie-talkie. Since the technology of the walkie-talkie is relatively mature, the receiving module 2 can be equipped with a circuit similar to that of the walkie-talkie to receive and demodulate the signal of the walkie-talkie. For those skilled in the art, it is a technology that can be easily obtained and belongs to the known technology. MCU module, the processing module with STM32F103 produced by STMicroelectronics as the core is used here. This single-chip microcomputer integrates a wealth of on-chip and external hardware. Through the open data manual and its own integrated software library, the data splicing and format conversion are completed. is a common technique. The GSM module 4 adopts the mature SIM900 module on the market, and can directly complete the sending of information through the AT command operation of the MCU module. Relevant public information can be found on the Internet, which belongs to known technology. Of course, the GSM module here can also be other mature modules in the market such as WCDMA modules, which support SIM cards and can transmit information through mobile phone base stations. In addition to SMS, you can also send distress information through GPRS. The power module 5 adopts a combined structure of a lithium battery and a solar panel, which is used to improve the battery life of the entire relay station. The related circuit connection technology is also very mature and belongs to the known technology.

On the basis of the above embodiments, further, when the required coverage area is large enough, in order to ensure that the distress information is obtained in a timely manner, there may be hundreds, thousands or even tens of thousands of relay stations. The function of the relay station is to ensure the user's The distress message is received in time and action is taken, and its specific implementation mode is the same as the principle of the above-mentioned embodiment. It will not be described here.

Example 3

In the above-mentioned embodiment 1 and embodiment 2, the GSM module forwards the distress message through the short message service. On this basis, further, the data can be forwarded through the GPRS service. In the rescue center, a server for receiving the GPRS data service of the relay station is set up, and the address of the server is written into the GSM module of each relay station. When the relay station receives the distress message, it demodulates the data through the MCU module, and uploads the distress message to the server through GPRS. The personnel of the emergency center started rescue in time after seeing the message for help. The relevant settings can be completed through the manual of the GSM module, which belongs to the known technology.

On the basis of the above embodiments, further, the relay station can install the SIM900 module and the walkie-talkie module at the same time. Set up the relay station in a location covered by GSM signals. Under normal circumstances, the SIM900 module is used to forward the distress information; The module has no signal, and the GSM module cannot be used to send data, thereby activating the walkie-talkie module and transmitting the distress message through radio frequency. Since the walkie-talkie technology is relatively mature, the 1846S walkie-talkie module can be used to forward information on amateur frequencies. Its implementation is similar to that of the GSM module, and will not be described here.

The above embodiments are only preferred implementations based on the idea of the present invention, and do not constitute any limitation to the present invention. Obviously, based on the idea of the present invention, other changes and substitutions are also possible, and these are all included in the protection of the present invention.

Claims (10)

1. An outdoor rescue system, comprising at least one transmitter and at least one relay station, the transmitter is a device for users to carry for communication and sending distress information, and has a radio frequency transmitting module; the relay station is used to receive distress information and send distress information Sending information outside, with a radio frequency receiving module; the relay station is set up on a high mountain top outdoors, and information is transmitted between the transmitter and the relay station through radio frequency; it is characterized in that: The transmitter has a data generating module for obtaining local position coordinates and generating distress information sent to the relay station, and the data generating module is electrically connected to the radio frequency transmitting module; The relay station has an information service module that can use a SIM card, communicates with other devices through the mobile phone base station, and the information service module is electrically connected to the radio frequency receiving module. 2. The system according to claim 1, further comprising a rescue center, the rescue center can be in the following two forms of organization, (1) Personal mobile phone, receive the distress signal forwarded by the relay station, and contact a third-party organization for rescue; (2) The third-party rescue agency has a dedicated SMS receiving alarm and GPRS data server. 3. The system according to claim 1, wherein the distress information sent to the relay station is the position coordinates of the transmitter itself. 4. The system according to claim 1 or 3, characterized in that, the help-calling information further includes the information of the help-calling object. 5 . The system according to claim 4 , wherein the information of the help-seeking object is a phone number, and the information service module sends the help-seeking information through a short message. 6 . 6. The system according to claim 1, characterized in that, said information service module sends out the emergency data through GPRS. 7. The system according to claim 1, 5 or 6, wherein the information service module includes a GSM unit and a radio frequency unit, and the information can be forwarded through the GSM unit or the radio frequency unit. 8. The system according to claim 1, wherein the data generation module of the transmitter obtains local position coordinates as GPS coordinates, and the method for obtaining GPS coordinates is one of the following two modes, (1) The data generation module itself has a GPS function, and obtains GPS coordinates through its own GPS unit; (2) The data generation module has a communication unit capable of communicating with a third-party device with GPS function, and obtains GPS coordinates through the third-party device. 9. The system according to claim 1 or 8, wherein the transmitter is a walkie-talkie. 10. The method for using the above-mentioned system is characterized in that, comprising the following steps, S1, the transmitter obtains its own location information, combines its own location information and the information of the rescue object into a distress message, and sends it out; S2, the relay station receives the distress message sent by the transmitter; S3, the relay station forwards the distress information to the rescue center through the information service module; S4, the relay station analyzes the distress information, and obtains the position coordinates of the distress and the information of the distress object; S5, sending the location coordinates of the rescue call and the information of the rescue center to the rescue call object.