CN110807904A - Beidou satellite-based emergency rescue command system - Google Patents
Beidou satellite-based emergency rescue command system Download PDFInfo
- Publication number
- CN110807904A CN110807904A CN201911080493.3A CN201911080493A CN110807904A CN 110807904 A CN110807904 A CN 110807904A CN 201911080493 A CN201911080493 A CN 201911080493A CN 110807904 A CN110807904 A CN 110807904A
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- Prior art keywords
- beidou
- module
- positioning
- safety helmet
- communication
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
Abstract
The invention discloses an emergency rescue command system based on a Beidou satellite, which comprises: the system comprises a plurality of safety helmet devices with Beidou communication modules, a plurality of mobile phone terminals, a Beidou server and an emergency command control system; the safety helmet equipment is in communication connection with the mobile phone terminal; the safety helmet equipment is in communication connection with the Beidou server through a Beidou communication module; the Beidou server carries out data interaction with the emergency command control system through a network communication protocol; the safety helmet equipment comprises a safety helmet body and an intelligent positioning main board circuit; the intelligent positioning main board circuit comprises a Beidou RNSS positioning module, a Beidou RDSS communication module, a GPRS module, a processor and a battery; the processor is in communication connection with the Beidou RNSS positioning module, the Beidou RDSS communication module and the GPRS module respectively; the battery is electrically connected with the Beidou RNSS positioning module, the Beidou RDSS communication module, the GPRS module and the processor respectively; the intelligent positioning main board circuit is arranged inside the safety helmet body.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an emergency rescue command system based on a Beidou satellite.
Background
In the emergency repair of the power system, if a place of affair is located in a remote area and has no mobile base station or the place of affair mobile base station fails due to natural disasters, the satellite telephone is expensive and communication cost is high, and the satellite telephone cannot be used by one person, communication between the emergency rescue dispatching team and the emergency rescue subsequent team and communication between the emergency rescue dispatching team and a command center cannot be kept smooth, the positions cannot be shared, and sudden and emergency situations cannot be communicated with each other in time, so that emergency rescue personnel have to concentrate on the place with the satellite telephone, and do not move around, and rescue efficiency is affected.
Disclosure of Invention
The invention provides an emergency rescue command system based on a Beidou satellite, which is characterized in that safety helmet equipment with a Beidou communication module is applied in emergency repair, is in Beidou communication connection with a mobile phone terminal and a Beidou server to transmit positioning information and send distress signals, and then is sent to an emergency command control system to give an alarm, so that the technical problems that communication among a first-time rescue team, a subsequent emergency rescue team and a command center is difficult to keep smooth, the positions cannot be shared, and sudden and emergency situations are difficult to communicate with each other in time in the existing emergency repair of a power system are solved, and the positioning and distress signal transmission are carried out through the Beidou technology, so that the communication among emergency personnel is guaranteed, and the rescue efficiency is improved.
In order to solve the technical problem, an embodiment of the present invention provides an emergency rescue command system based on a Beidou satellite, including: the system comprises a plurality of safety helmet devices with Beidou communication modules, a plurality of mobile phone terminals, a Beidou server and an emergency command control system;
the safety helmet equipment is in communication connection with the mobile phone terminal; the safety helmet equipment is in communication connection with the Beidou server through a Beidou communication module; the Beidou server carries out data interaction with the emergency command control system through a network communication protocol;
the safety helmet equipment comprises a safety helmet body and an intelligent positioning main board circuit; the intelligent positioning main board circuit comprises a Beidou RNSS positioning module, a Beidou RDSS communication module, a GPRS module, a processor and a battery; the processor is in communication connection with the Beidou RNSS positioning module, the Beidou RDSS communication module and the GPRS module respectively; the battery is electrically connected with the Beidou RNSS positioning module, the Beidou RDSS communication module, the GPRS module and the processor respectively; the intelligent positioning main board circuit is arranged inside the safety helmet body.
As a preferred scheme, the intelligent positioning mainboard circuit further comprises a bluetooth module, and the bluetooth module is connected with the processor.
Preferably, the safety helmet device is in communication connection with the mobile phone terminal through bluetooth.
Preferably, the network communication protocol is a TCP protocol or an IP protocol.
Preferably, the battery is a polymer lithium battery.
As a preferred scheme, the Beidou RDSS communication module comprises a Beidou RDSS receiving and transmitting antenna and a Beidou positioning receiving and transmitting module, and the Beidou positioning receiving and transmitting module responds to an external satellite positioning system through the Beidou RDSS receiving and transmitting antenna.
As a preferred scheme, the Beidou RNSS positioning module comprises a Beidou RNSS antenna, an RNSS LNA circuit and a Beidou positioning module; the Beidou positioning module is used for controlling the Beidou RNSS antenna to receive satellite positioning signals sent by a satellite system through the RNSS LNA circuit.
As preferred scheme, big dipper orientation module includes the second generation module of big dipper.
As a preferred scheme, the emergency command control system comprises a control host and a display screen, wherein a signal input end of the control host is connected with the Beidou server, and a first signal output end of the control host is connected with the display screen.
As a preferred scheme, the emergency command control system further comprises an alarm, and the alarm is connected with the second signal output end of the control host.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the emergency rescue system, the safety helmet equipment with the Beidou communication module is applied to emergency rescue, the safety helmet equipment is in Beidou communication connection with the mobile phone terminal and the Beidou server to transmit positioning information and send distress signals, and then the positioning information and the distress signals are sent to the emergency command control system to give an alarm, so that the technical problems that communication between a first-time rescue army and a subsequent emergency rescue army and communication between the first-time rescue army and a command center are difficult to keep smooth, positions cannot be shared, and sudden and emergency situations are difficult to communicate with each other in time in the existing emergency rescue of a power system are solved, positioning and distress signal transmission are performed through the Beidou technology, communication among emergency personnel is guaranteed, and rescue efficiency is improved.
Drawings
FIG. 1: the emergency rescue command system is a schematic structural diagram based on the Beidou satellite in the embodiment of the invention;
FIG. 2: the circuit structure of the intelligent positioning mainboard is shown in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a preferred embodiment of the present invention provides an emergency rescue command system based on a Beidou satellite, including: the system comprises a plurality of safety helmet devices with Beidou communication modules, a plurality of mobile phone terminals, a Beidou server and an emergency command control system;
the safety helmet equipment is in communication connection with the mobile phone terminal; the safety helmet equipment is in communication connection with the Beidou server through a Beidou communication module; the Beidou server carries out data interaction with the emergency command control system through a network communication protocol; in this embodiment, the safety helmet device is connected to the mobile phone terminal through bluetooth communication. In this embodiment, the network communication protocol is a TCP protocol or an IP protocol. In this embodiment, emergency command control system includes main control system and display screen, main control system's signal input part with big dipper server is connected, main control system's first signal output part is connected with the display screen. In this embodiment, the emergency command and control system further includes an alarm, and the alarm is connected with the second signal output end of the control host.
The safety helmet equipment comprises a safety helmet body and an intelligent positioning main board circuit; the intelligent positioning main board circuit comprises an RNSS positioning module, an RDSS communication module, a GPRS module, a processor and a battery;
the RNSS positioning module is used for receiving satellite positioning signals; the RDSS communication module is used for responding to an external satellite positioning system; the processor is used for processing according to the satellite signals received by the RNSS positioning module and the response result of the RDSS communication module to obtain actual positioning information; the GPRS module is used for sending the actual positioning information to a monitoring center; the battery is used for providing electric energy for the whole intelligent positioning main board circuit through the battery charging circuit to supply power; in this embodiment, the GPRS module is provided with a built-in signal transmitting/receiving antenna. In this embodiment, the battery is a polymer lithium battery.
The RNSS positioning module is a Beidou RNSS positioning module, and the RDSS communication module is a Beidou RDSS communication module; in this embodiment, the big dipper RDSS communication module includes big dipper RDSS transceiver antenna and big dipper location transceiver module, and big dipper location transceiver module responds with external satellite positioning system through the big dipper RDSS transceiver antenna. In this embodiment, the Beidou RNSS positioning module includes a Beidou RNSS antenna, an RNSS LNA circuit and a Beidou positioning module; the Beidou positioning module is used for controlling the Beidou RNSS antenna to receive satellite positioning signals sent by a satellite system through the RNSS LNA circuit. In this embodiment, the big dipper orientation module includes the second generation big dipper module. In this embodiment, the safety helmet system based on beidou navigation satellite system still includes: and the Bluetooth module is connected with the processor. Through increasing bluetooth module, can make the safety helmet possess more communication transmission function. The intelligent positioning main board circuit is arranged inside the safety helmet body.
In an emergency rescue project, the safety helmet device is configured for each worker, when an emergency situation occurs, an emergency help-seeking signal is sent to a Beidou server through the safety helmet device, the Beidou server forwards the emergency help-seeking signal to an emergency command control system after receiving the emergency help-seeking signal, then related workers send rescue instructions to surrounding workers according to preset measures after receiving the emergency help-seeking signal, and the rescue instructions are forwarded to the safety helmet device or a mobile phone terminal through the Beidou server; in addition, the mobile phone terminal can also perform data transmission with the safety helmet device through the Bluetooth module to acquire relevant data and the like required by rescue actions. In the technical scheme, the Beidou server is arranged in a machine room and used for receiving and sending related transmission signals; the emergency command control system is arranged in the command center and used for displaying the distress signal and issuing a corresponding rescue instruction.
The emergency rescue command system adopts an application command platform of a BD-2 navigation positioning system, is an important link for connecting field users and a central control system, is key equipment for the second Beidou to exert a preset tactical technical index and achieve an actual combat application target, and not only has the functions of positioning, navigation, communication and time service, but also has the functions of commanding, scheduling, monitoring and broadcasting. Is suitable for various occasions such as fixed command posts, mobile command posts, shelter and the like. The following functions are realized:
① can realize accurate positioning of emergency or patrol personnel;
②, the remote automatic transmission of the data of the status information of the emergency repair equipment can be realized;
③ can realize emergency call when the on-site personnel is in danger, and quickly communicate with personnel at nearby positions to carry out emergency treatment nearby;
④, it can realize the data analysis of the current state information of the first-aid repair equipment and automatically alarm when it is out of order.
Specifically, the RNSS Radio Navigation Satellite System, which is a Satellite Radio Navigation service, receives Satellite Radio Navigation signals by a user, autonomously performs distance measurement to at least 4 satellites, and calculates user position, speed and Navigation parameters. GPS and like systems are typical RNSS systems.
RDSS is another Satellite Radio measurement Service, and distance measurement and position calculation from a user to a Satellite cannot be independently completed by the user, and must be completed by an external system through the response of the user. The method is characterized in that the user response is used for completing the positioning and the user position report to an external system, and the integration of the positioning and the communication can be realized, so that the NAVCOMM integration in the same system is realized.
The invention integrates communication and positioning through the RNSS and the RDSS, and integrates two services of the RNSS and the RDSS in a navigation satellite and operation control application system of a satellite navigation system. The system can provide continuous positioning and speed measuring capability (so-called passive navigation positioning) for users, and can also carry out position reporting with high safety level without information transmission. The integration of navigation and communication can be embedded into each other and enhanced with each other.
Description of the operation of the safety helmet of the present invention: 1. starting up: pressing the power-on key for more than 1S, loosening, enabling the operation indicator lamp to be normally on, enabling the equipment to enter an initialization state, and enabling the operation lamp to flicker after initialization is finished. And the equipment enters a normal working mode and selects a proper communication mode to carry out position reporting. 2. One-key alarm: and when the SOS key is pressed for more than 2S, the equipment enters an SOS alarm mode and enters a one-tone voice prompt that drips exist successfully. And in the alarm mode, the equipment reports the distress information at full frequency. 3. Bluetooth connection: open and correspond cell-phone APP and click the jointing equipment (search bluetooth), connect the bluetooth: bluetooth beginning with TA.
Description of charging of the helmet of the present invention: 1. power supply: a rechargeable lithium polymer battery is built in. 2. Charging: and charging the equipment by using the corresponding power adapter, wherein in a charging state, the charging lamp is always on, and the full-charging lamp is turned off. 3. Electric quantity reminding: (1) checking the electric quantity information through a mobile phone client; (2) when the electric quantity is insufficient, the equipment sends out a voice prompt of dropping sound; a charging mode: USB charging (micro-USB interface).
The Beidou safety helmet has the functions of Beidou navigation positioning and Beidou RDSS data transmission, and supports the RDSS communication of S, L frequency points of Beidou communication satellites and the combined positioning of B1 and L1 frequency points of RNSS. The system is particularly suitable for being used in the areas with rare people in the field and no coverage of mobile public network signals, and is mainly used for occasions such as power line inspection, emergency repair and rescue.
In another embodiment, the Beidou positioning module is replaced by a GPS module. And multifunctional conversion is realized by selecting a GPS module.
In another embodiment, the Beidou navigation based hard hat system further comprises: and the power management module is used for carrying out intelligent optimization management on the power supply of the battery. In this embodiment, the safety helmet system based on beidou navigation satellite system still includes: and the booster circuit is used for receiving a boosting instruction sent by the power management module and boosting the voltage in the power supply circuit.
The safety helmet of the invention has the main functions as follows: 1. the positioning function is that the safety helmet periodically (every minute) uploads the position information to the emergency master station; 2. the alarm functions mainly comprise an electricity approach alarm, a cap off alarm, an electronic fence alarm and a one-key SOS. After the safety helmet triggers the alarm, the information can be uploaded to an emergency master station through Beidou short message communication.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (10)
1. The utility model provides an emergency rescue command system based on big dipper satellite which characterized in that includes: the system comprises a plurality of safety helmet devices with Beidou communication modules, a plurality of mobile phone terminals, a Beidou server and an emergency command control system;
the safety helmet equipment is in communication connection with the mobile phone terminal; the safety helmet equipment is in communication connection with the Beidou server through a Beidou communication module; the Beidou server carries out data interaction with the emergency command control system through a network communication protocol;
the safety helmet equipment comprises a safety helmet body and an intelligent positioning main board circuit; the intelligent positioning main board circuit comprises a Beidou RNSS positioning module, a Beidou RDSS communication module, a GPRS module, a processor and a battery; the processor is in communication connection with the Beidou RNSS positioning module, the Beidou RDSS communication module and the GPRS module respectively; the battery is electrically connected with the Beidou RNSS positioning module, the Beidou RDSS communication module, the GPRS module and the processor respectively; the intelligent positioning main board circuit is arranged inside the safety helmet body.
2. The Beidou satellite based emergency rescue command system of claim 1, wherein the smart positioning motherboard circuit further comprises a Bluetooth module, the Bluetooth module being connected to the processor.
3. The Beidou satellite based emergency rescue command system of claim 2, wherein the safety helmet device is connected with the mobile phone terminal through Bluetooth communication.
4. An emergency rescue command system based on Beidou satellite according to claim 1, characterized in that the network communication protocol is TCP protocol or IP protocol.
5. The Beidou satellite based emergency rescue command system of claim 1, wherein the battery is a polymer lithium battery.
6. The Beidou satellite based emergency rescue command system of claim 1, wherein the Beidou RDSS communication module comprises a Beidou RDSS transceiver antenna and a Beidou positioning transceiver module, the Beidou positioning transceiver module responding with an external satellite positioning system through the Beidou RDSS transceiver antenna.
7. The Beidou satellite based emergency rescue command system of claim 1, wherein the Beidou RNSS positioning module comprises a Beidou RNSS antenna, an RNSS LNA circuit and a Beidou positioning module; the Beidou positioning module is used for controlling the Beidou RNSS antenna to receive satellite positioning signals sent by a satellite system through the RNSS LNA circuit.
8. The Beidou satellite based emergency rescue command system of claim 7, wherein the Beidou positioning module comprises a Beidou second generation module.
9. The Beidou satellite-based emergency rescue command system of claim 1, wherein the emergency command control system comprises a control host and a display screen, a signal input end of the control host is connected with the Beidou server, and a first signal output end of the control host is connected with the display screen.
10. An emergency rescue command system based on a Beidou satellite according to claim 9, wherein the emergency command control system further comprises an alarm connected with the second signal output end of the control host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911080493.3A CN110807904A (en) | 2019-11-07 | 2019-11-07 | Beidou satellite-based emergency rescue command system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911080493.3A CN110807904A (en) | 2019-11-07 | 2019-11-07 | Beidou satellite-based emergency rescue command system |
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| CN110807904A true CN110807904A (en) | 2020-02-18 |
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| CN201911080493.3A Pending CN110807904A (en) | 2019-11-07 | 2019-11-07 | Beidou satellite-based emergency rescue command system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113763585A (en) * | 2021-09-02 | 2021-12-07 | 中国南方电网有限责任公司超高压输电公司大理局 | Power equipment field inspection system |
| CN114245363A (en) * | 2021-11-05 | 2022-03-25 | 河北北斗天汇科技有限公司 | Beidou emergency communication system and method |
| CN115524721A (en) * | 2022-09-06 | 2022-12-27 | 山重建机有限公司 | Excavator data transmission device based on Beidou RDSS short message communication |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966110A (en) * | 2015-06-03 | 2015-10-07 | 阮向荣 | Information statistical method, wireless data collection terminal and wireless signal transmission devices |
| CN105411078A (en) * | 2015-11-28 | 2016-03-23 | 芜湖市振华戎科智能科技有限公司 | Field individual combat helmet based on Beidou navigation satellite |
| CN105533884A (en) * | 2015-12-04 | 2016-05-04 | 肖文海 | Site-disposal rescue command system |
| CN205301595U (en) * | 2016-01-04 | 2016-06-08 | 秦永红 | Positioning device based on big dipper satellite |
| CN105852299A (en) * | 2016-06-17 | 2016-08-17 | 上海铁路通信有限公司 | Intelligent safety helmet for railway communication outdoor construction |
| US10078139B2 (en) * | 2015-03-19 | 2018-09-18 | Hcl Technologies Ltd. | Device and method for tracking compliance information of a rider |
-
2019
- 2019-11-07 CN CN201911080493.3A patent/CN110807904A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10078139B2 (en) * | 2015-03-19 | 2018-09-18 | Hcl Technologies Ltd. | Device and method for tracking compliance information of a rider |
| CN104966110A (en) * | 2015-06-03 | 2015-10-07 | 阮向荣 | Information statistical method, wireless data collection terminal and wireless signal transmission devices |
| CN105411078A (en) * | 2015-11-28 | 2016-03-23 | 芜湖市振华戎科智能科技有限公司 | Field individual combat helmet based on Beidou navigation satellite |
| CN105533884A (en) * | 2015-12-04 | 2016-05-04 | 肖文海 | Site-disposal rescue command system |
| CN205301595U (en) * | 2016-01-04 | 2016-06-08 | 秦永红 | Positioning device based on big dipper satellite |
| CN105852299A (en) * | 2016-06-17 | 2016-08-17 | 上海铁路通信有限公司 | Intelligent safety helmet for railway communication outdoor construction |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113763585A (en) * | 2021-09-02 | 2021-12-07 | 中国南方电网有限责任公司超高压输电公司大理局 | Power equipment field inspection system |
| CN114245363A (en) * | 2021-11-05 | 2022-03-25 | 河北北斗天汇科技有限公司 | Beidou emergency communication system and method |
| CN115524721A (en) * | 2022-09-06 | 2022-12-27 | 山重建机有限公司 | Excavator data transmission device based on Beidou RDSS short message communication |
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Application publication date: 20200218 |