CN214896247U - Vehicle-mounted locator based on NB-IOT technology - Google Patents
Vehicle-mounted locator based on NB-IOT technology Download PDFInfo
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- CN214896247U CN214896247U CN202120170484.XU CN202120170484U CN214896247U CN 214896247 U CN214896247 U CN 214896247U CN 202120170484 U CN202120170484 U CN 202120170484U CN 214896247 U CN214896247 U CN 214896247U
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- 238000005516 engineering process Methods 0.000 title claims description 13
- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000010295 mobile communication Methods 0.000 claims abstract description 5
- 230000001133 acceleration Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 241000251468 Actinopterygii Species 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses an on-vehicle locator based on NB-IOT technique, including: the main control chip is used as a control chip of the whole mobile communication; the NB-IOT antenna is responsible for communication with the base station, receives issued data from a background on one hand, and reports local automobile state information to the background on the other hand; the 433M transmitting module is communicated with the main control chip through an IO, and when the main control chip transmits data to the outside, the data are transmitted to the 433M transmitting module through a single IO in sequence; the 433M receiving module is used for receiving and demodulating the communication data transmitted by the 433M transmitting module, the demodulated data is sent to the MCU, and the MCU analyzes the data and then controls the relay to be switched off; when the background server issues an instruction of 'oil cut/power cut', the instruction is issued to the main control chip through the NB network, and then the main control chip sends the instruction to the relay through 433M communication to execute the instruction when appropriate.
Description
Technical Field
The utility model relates to an on-vehicle locator especially relates to an on-vehicle locator based on NB-IOT technique.
Background
The vehicle-mounted locator is also called a vehicle positioning tracker, and is mainly a vehicle-mounted anti-theft GPS positioning product. The functions of the vehicle-mounted locator generally comprise short message positioning, timing positioning, network query, remote monitoring, remote vehicle locking and the like. The existing vehicle-mounted positioner mostly adopts a wired control mode and is complex to install, so that the problem of solving the type is very important.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides an on-vehicle locator based on NB-IOT technique, when the backstage server issued the instruction of "fuel cut off/outage", issued main control chip through the NB network in, then main control chip gives the instruction to the relay through 433M communication when suitable and carries out the instruction.
In order to realize the technical scheme, the utility model provides a vehicle-mounted locator based on NB-IOT technique, which comprises a main control chip, an NB-IOT antenna, a 433M transmitting module and a 433M receiving module, wherein the main control chip is used as a control chip of the whole mobile communication; the NB-IOT antenna is responsible for communication with the base station, receives issued data from a background on one hand, and reports local automobile state information to the background on the other hand; the 433M transmitting module is communicated with the main control chip through an IO, and when the main control chip transmits data to the outside, the data are transmitted to the 433M transmitting module through a single IO in sequence; the 433M receiving module is used for receiving and demodulating the communication data transmitted by the 433M transmitting module, and then the switching-off of the relay is controlled through the data analyzed by the MCU.
The further improvement lies in that: the automobile driving detection system further comprises an acceleration sensor, wherein the acceleration sensor is communicated with the main control chip through an I2C interface, and the driving state of an automobile is detected by the acceleration sensor; when the main control chip sends an oil cut-off/power-off instruction through the 433M transmitting module, after the acceleration sensor detects that the automobile is in a static state, the received instruction is sent to the relay to cut off the oil cut-off/power-off of the automobile.
The further improvement lies in that: after the 433M receiving module receives the instruction transmitted by the 433M transmitting module, the 433M receiving module transmits the instruction data to the MCU, the MCU analyzes the instruction data according to a set data format, and if the instruction data conforms to the set data format, the relay is controlled to be turned off.
The further improvement lies in that: the 433 transmitting module works at 433.92 MHZ and adopts ASK/OOK modulation.
The further improvement lies in that: the main control chip is further connected with a GPS antenna, a battery supplies power to the main control chip through a DC-DC circuit, meanwhile, the battery also supplies power to the 433M transmitting module, and the 433M transmitting module is connected with the 433M antenna.
The further improvement lies in that: the 433M receiving module is provided with a 433M antenna, and a 12V power supply of the automobile supplies power to the 433M receiving module, the MCU and the relay through a DC-DC circuit.
The utility model has the advantages that: when the backstage server issues the instruction of 'oil break/power off', the instruction is issued to the main control chip through the NB network, then the main control chip sends the instruction to the relay through 433M communication under certain conditions to execute the instruction, the utility model discloses thereby implement remote control to the vehicle based on NB-IOT technology, and the relay is installed on the engine room or is connected on the mainboard of the main control computer of the automobile as an independent product, and the installation is more convenient; and the 433M communication mode is adopted to control the automobile, so that the control effect is more excellent.
Drawings
Fig. 1 is a system structure diagram of the present invention.
Fig. 2 is a diagram of a working frame of the relay of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1 and 2, the present embodiment provides a vehicle-mounted locator based on NB-IOT technology, including a main control chip, an NB-IOT antenna, a 433M transmitting module and a 433M receiving module, where the main control chip is used as a control chip of the whole mobile communication; the NB-IOT antenna is responsible for communication with the base station, receives issued data from a background on one hand, and reports local automobile state information to the background on the other hand; the 433M transmitting module is communicated with the main control chip through an IO, and when the main control chip transmits data to the outside, the data are transmitted to the 433M transmitting module through a single IO in sequence; the 433M receiving module is used for receiving and demodulating the communication data transmitted by the 433M transmitting module, the demodulated data is sent to the MCU, and the MCU analyzes the data and then controls the relay to be switched off.
The automobile driving detection system further comprises an acceleration sensor, wherein the acceleration sensor is communicated with the main control chip through an I2C interface, and the driving state of an automobile is detected by the acceleration sensor; when the main control chip sends an oil cut-off/power-off command through the 433M transmitting module, after the acceleration sensor detects that the automobile is in a static state, the received command is sent to the relay to cut off the oil cut-off/power-off of the automobile.
After the 433M receiving module receives the instruction transmitted by the 433M transmitting module, the 433M receiving module transmits the instruction data to the MCU, the MCU analyzes the instruction data according to a set data format, and if the instruction data conforms to the set data format, the relay is controlled to be turned off.
The 433 transmitting module works at 433.92 MHZ and adopts ASK/OOK modulation.
The main control chip is further connected with a GPS antenna, a battery supplies 3.3V electricity to the main control chip through a DC-DC circuit, meanwhile, the battery also supplies 2.8-4.2V electricity to a 433M transmitting module, and the 433M transmitting module is connected with the 433M antenna.
The 433M receiving module is provided with a 433M antenna, and a 12V power supply of the automobile supplies 3.3V power to the 433M receiving module and the MCU through a DC-DC circuit and supplies 12V power to the relay.
The main control chip is a big fish U1 chip, an NB-IOT chip with built-in GPS/Beidou, a B1, a B3, a B5 and a B8 supporting 3GPP R14 and NB-IOT, and a GPS L1 and a Beidou B1 frequency band.
The 433M transmitting module adopts a Huapu micro CMT2110 wireless transmitting chip, adopts an OOk modulation mode, and has the transmitting power of 11.8dbm and the transmitting frequency of 433.92 MHZ; dimension 12.5X7 mm; in the actual field test, the wireless transmission distance of the module in the open field is more than 200M.
The NB-IOT antenna adopts an FPC antenna, and the actual measurement of the passive efficiency is more than 40%.
The acceleration sensor is Boshi BMA253 and a three-axis acceleration sensor; detecting whether the vehicle is moving; when the vehicle is moving, the locator portion does not send the fuel cut-off, power cut-off instruction to the relay portion.
The 1.433M receiving module and the MCU adopt a Micrel MICRF211 wireless receiving chip, and the receiving sensitivity is-108 dbm.
When the backstage server issues the instruction of 'oil cut-off/power off', the instruction is issued to the main control chip through the NB network, then the main control chip sends the instruction to the relay through 433M communication to execute the instruction when appropriate, the utility model discloses thereby implement remote control to the vehicle based on NB-IOT technology, and the relay is installed as an independent product in the engine room or connected on the mainboard of the main control computer of the automobile, and it is more convenient to install; and the 433M communication mode is adopted to control the automobile, so that the control effect is more excellent.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. An on-vehicle locator based on NB-IOT technique which characterized in that: the mobile communication system comprises a main control chip, an NB-IOT antenna, a 433M transmitting module and a 433M receiving module, wherein the main control chip is used as a control chip of the whole mobile communication; the NB-IOT antenna is responsible for communication with the base station, receives issued data from a background on one hand, and reports local automobile state information to the background on the other hand; the 433M transmitting module is communicated with the main control chip through an IO, and when the main control chip transmits data to the outside, the data are transmitted to the 433M transmitting module through a single IO in sequence; the 433M receiving module is used for receiving and demodulating the communication data transmitted by the 433M transmitting module, the demodulated data is sent to the MCU, and the MCU analyzes the data and then controls the relay to be switched off.
2. The NB-IOT technology-based in-vehicle locator of claim 1, wherein: the automobile driving detection system further comprises an acceleration sensor, wherein the acceleration sensor is communicated with the main control chip through an I2C interface, and the driving state of an automobile is detected by the acceleration sensor; after the locator receives the control command sent by the background, the acceleration sensor continuously detects the running state of the automobile, and then the received command is sent to the relay to carry out 'oil cut/power cut' on the automobile when the automobile is in a static state.
3. The NB-IOT technology-based in-vehicle locator of claim 2, wherein: the main control chip is a big fish U1 chip, an NB-IOT chip with built-in GPS/Beidou supports 3GPP R14, B1, B3, B5 and B8 supporting NB-IOT, a GPS L1 frequency band and a Beidou B1 frequency band; the acceleration sensor is Boshi BMA253 and a three-axis acceleration sensor; the NB-IOT antenna adopts an FPC antenna, and the actual measurement of the passive efficiency is more than 40%.
4. The NB-IOT technology-based in-vehicle locator of claim 2, wherein: after the 433M receiving module receives the instruction transmitted by the 433M transmitting module, the 433M receiving module transmits the instruction data to the MCU, the MCU analyzes the instruction data according to a set data format, and if the instruction data conforms to the set data format, the relay is controlled to be turned off.
5. The NB-IOT technology-based in-vehicle locator of claim 2, wherein: the 433M receiving module and the MCU adopt a Micrel MICRF211 wireless receiving chip, and the receiving sensitivity is-108 dbm.
6. The NB-IOT technology-based in-vehicle locator of claim 1, wherein: the 433 transmitting module works at 433.92 MHZ and adopts ASK/OOK modulation.
7. The NB-IOT technology-based on-board locator of claim 6, wherein: the 433M transmitting module adopts a Huapu micro CMT2110 wireless transmitting chip, adopts an OOk modulation mode, and has the transmitting power of 11.8dbm and the transmitting frequency of 433.92 MHZ; dimension 12.5X7 mm; in the actual field test, the wireless transmission distance of the module in the open field is more than 200M.
8. The NB-IOT technology-based in-vehicle locator of claim 1, wherein: the main control chip is further connected with a GPS antenna, a battery supplies power to the main control chip through a DC-DC circuit, meanwhile, the battery also supplies power to the 433M transmitting module, and the 433M transmitting module is connected with the 433M antenna.
9. The NB-IOT technology-based in-vehicle locator of claim 1, wherein: the 433M receiving module is provided with a 433M antenna, and the 433M receiving module, the MCU and the relay are powered by an automobile through a DC-DC circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120170484.XU CN214896247U (en) | 2021-01-22 | 2021-01-22 | Vehicle-mounted locator based on NB-IOT technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120170484.XU CN214896247U (en) | 2021-01-22 | 2021-01-22 | Vehicle-mounted locator based on NB-IOT technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214896247U true CN214896247U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120170484.XU Expired - Fee Related CN214896247U (en) | 2021-01-22 | 2021-01-22 | Vehicle-mounted locator based on NB-IOT technology |
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| Country | Link |
|---|---|
| CN (1) | CN214896247U (en) |
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2021
- 2021-01-22 CN CN202120170484.XU patent/CN214896247U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211126 |