CN205854088U - Bus location ensures alarm - Google Patents
Bus location ensures alarm Download PDFInfo
- Publication number
- CN205854088U CN205854088U CN201620805115.2U CN201620805115U CN205854088U CN 205854088 U CN205854088 U CN 205854088U CN 201620805115 U CN201620805115 U CN 201620805115U CN 205854088 U CN205854088 U CN 205854088U
- Authority
- CN
- China
- Prior art keywords
- module
- unit
- automobile
- control unit
- radio frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000009466 transformation Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
This utility model provides a kind of bus location to ensure alarm, including emission of radio frequency signals module, rf signal reception module, supply module, tamper module, emission of radio frequency signals module includes interconnective transmitter unit, the first control unit, and transmitter unit is for launching radiofrequency signal with the fixed cycle；Rf signal reception module includes receiving unit, the second control unit, switch module, receive unit for receiving radiofrequency signal with the fixed cycle, switch module is for controlling the break-make of automobile oil-way or automobile circuit, and the second control unit is connected with reception unit, switch module, tamper module respectively；Supply module provides power supply to emission of radio frequency signals module, rf signal reception module.This utility model simple in construction, low in energy consumption, integrated level is high, takies small volume, the least to around disturbing during use；When lawless person utilizes countermeasure set or wants to remove device, automobile oil-way or circuit can be disconnected in time, it is achieved antitheft effect.
Description
Technical field
This utility model relates to a kind of car alarm, particularly relates to a kind of bus location and ensures alarm.
Background technology
Recently, automobile leasing industry develops rapidly, and increasing consumer uses and hires a car as trip mode.For vapour
For car lease, losing car is severe problem.Although rent-a-car company takes a lot of measure, but industry of hiring a car is the occurred frequently of swindle
Field, loses car the most hard to guard against.Due to the high price of automobile, if occurring losing car phenomenon, it will cause great to rent-a-car company
Economic loss.
At present, automobile is mainly positioned by rent-a-car company by vehicle GPS, it is achieved the monitoring to automobile position, at car
Carry the general 2G signal that uses in GPS, or 2G signal is used with 3G signal combination, or 2G signal is used with 4G signal combination.
Therefore lawless person typically utilize countermeasure set interference vehicle GPS 2G signal so that rent-a-car company cannot receive from
The signal of vehicle GPS, and then automobile position cannot be positioned, reach to steal the purpose of vehicle.Existing automobile is prevented
Steal device, normally only for the antitheft mechanism designed by the wireless remote-control system on automobile, therefore only for 315MHz or
433.92MHz the two open frequency point design alarm.Therefore, existing alarm cannot be to the interference dress of interference 2G signal
Put and play a role, therefore cannot prevent lawless person from shielding vehicle-mounted GPS apparatus thus steal vehicle.
Utility model content
This utility model is in order to solve the problem that existing anti-theft device cannot play anti-theft function, it is provided that a kind of bus location
Ensure alarm.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of bus location ensures alarm,
It is characterized in that: including emission of radio frequency signals module, rf signal reception module, supply module, wherein, described radiofrequency signal is sent out
Penetrating module for fixed cycle T tranmitting frequency as 868MHz or the radiofrequency signal of 915MHz, emission of radio frequency signals module includes
Interconnective transmitter unit, the first control unit；Described rf signal reception module is penetrated described in receiving with fixed cycle T
Frequently signal, rf signal reception module includes receiving unit, the second control unit, switch module, and described switch module is used for controlling
Automobile oil-way processed or the break-make of automobile circuit, described second control unit is connected with reception unit, switch module respectively；Described
Supply module is for providing power supply to described emission of radio frequency signals module, rf signal reception module.
Owing to 2G signal place frequency range is disturbed by existing countermeasure set, and at 2G signal place frequency model
In enclosing, only the operating frequency of 868MHz, 915MHz is without authorization, hence with the transmitting list in emission of radio frequency signals module
Unit is with fixed cycle T tranmitting frequency as 868MHz or the radiofrequency signal of 915MHz, and the reception list in rf signal reception module
This radiofrequency signal is received by unit, simultaneously by the first control unit, the second control unit respectively to transmitter unit, reception list
Unit is controlled.If lawless person utilizes countermeasure set to disturb vehicle GPS, or emission of radio frequency signals module is torn open
Remove, then rf signal reception module cannot receive radiofrequency signal so that the second control unit controls switch module and disconnects automobile
Oil circuit or automobile circuit so that automobile cannot travel, therefore lawless person cannot steal vehicle, it is achieved antitheft effect.
Further, also including and receive the tamper module that unit is connected, described tamper module is for breaking at reception unit
Control automobile oil-way during electricity or automobile circuit disconnects.By arranging tamper module, if lawless person is by rf signal reception mould
Block is removed, then tamper module can disconnect oil circuit or gas circuit so that automobile cannot travel so that lawless person cannot steal car
, it is achieved antitheft effect.Tamper module is for continuing "on" position, if power-off is once, then after being once again powered up, tamper module is entered
Enter resting state, so that automobile cannot normally work.
Further, described switch module, tamper module are constituted by electric fuse or relay.
Further, described first control unit, the second control unit are constituted by single-chip microcomputer or DSP or FPGA.
Further, the radio-frequency transmissions chip of described transmitter unit, the radiofrequency receiving chip of described reception unit all use
SI4421。
Further, described supply module includes voltage transformation module, and the input of voltage transformation module is with automobile power source even
Connect.By supply module is connected with automobile power source, can be that bus location of the present utility model ensures alarm by automobile power source
There is provided the whole day power supply of 24 hours, it is ensured that the normal work of this device.
Further, described supply module is made up of battery.Owing to chip SI4421 has low in energy consumption, examine simultaneously
Consider to the fuel consumption of automobile power source relatively big, relatively costly, therefore under particular demands, it is possible to utilize the battery as this utility model
Supply module.
This utility model has the advantage that and includes with good effect:
(1) when lawless person utilizes countermeasure set to disturb the 2G signal place frequency range of vehicle-mounted GPS apparatus,
Can disconnect automobile oil-way or circuit so that automobile cannot travel, even if interference is cancelled, then vehicle also will enter oil-break or power-off shape
State, will not be again introduced into duty, and therefore lawless person cannot steal vehicle, it is achieved antitheft effect；
(2) if lawless person wants to remove emission of radio frequency signals module of the present utility model or rf signal reception module
Time, by the switch module arranged, tamper module, it is possible to disconnect automobile oil-way or circuit in time so that automobile cannot travel, i.e.
Making tamper module to be reinstalled, vehicle also will be continuously maintained in power-off or oil-break state, without reentering work again
State, therefore lawless person cannot steal vehicle, it is achieved antitheft effect；
(3) this utility model simple in construction, low in energy consumption, integrated level is high, takies small volume, greatly reduces micro-process
The burden of controller, has low transmitting power, the feature of high receiving sensitivity, the least to around disturbing during use, and is adopted
Radiofrequency signal without authorization.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model；
Fig. 2 is the schematic diagram of the switch module being made up of relay of the present utility model, wherein S12 and automobile fuel feeding end or
Feeder ear connects, and S11 is connected with automobile oil-way or automobile circuit, and P2 is connected with Single-chip Controlling pin, and dashed rectangle part is
Relay, S13 pin is vacant；
Fig. 3 is the schematic diagram of the tamper module being made up of relay of the present utility model, wherein S22 and automobile fuel feeding end or
Feeder ear connects, and S21 is connected with automobile oil-way or automobile circuit, and P3 is connected end connection with receiving unit, and dashed rectangle part is
Relay, S23 pin is vacant；
Fig. 4 is the schematic diagram of supply module of the present utility model, and wherein P4 end is connected with automobile power source, P5 end and radio
The feeder ear of transmitter module and the feeder ear of radio reception module connect.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
1, structure of the present utility model composition
As shown in Fig. 1 Fig. 4, a kind of bus location ensures alarm, connects including emission of radio frequency signals module, radiofrequency signal
Receive module, supply module, tamper module.
(1) emission of radio frequency signals module
Emission of radio frequency signals module includes interconnective transmitter unit, the first control unit.
First control unit can use single-chip microcomputer or DSP or FPGA to constitute.
Transmitter unit is used for fixed cycle T tranmitting frequency as 868MHz or the radiofrequency signal of 915MHz, transmitter unit
Radiofrequency receiving chip can use SI4421, also includes crystal oscillating circuit, reset circuit.SI4421 chip is a radio frequency chip, it
There is low cost, single-chip chip that integrated level is high, and integrated RF function, normal work only needs additional 1 crystal oscillator and several
Electric capacity, and it is operated in 868MHz, the 915MHz exempting from application.
(2) rf signal reception module
Rf signal reception module includes receiving unit, the second control unit, switch module.Second control unit respectively with
Receive unit, switch module is connected.
Receiving unit to be used for receiving described radiofrequency signal with fixed cycle T, the radiofrequency receiving chip receiving unit can use
SI4421, also includes crystal oscillating circuit, reset circuit.
Second control unit can use single-chip microcomputer or DSP or FPGA to constitute.
Switch module is for controlling the oil pump power supply of the break-make of automobile oil-way or automobile circuit, switch module and electromotor
The circuit of line or electromotor controls power line or the startup motor wire of electromotor or the ignition lead of electromotor or electromotor extinguishes
Line is connected.
Supply module is for providing power supply to described emission of radio frequency signals module, rf signal reception module；
Switch module can use electric fuse or relay to constitute.
Fig. 2 is the switch module being made up of relay.Owing to relay is perceptual device.Perceptual device is at coil blackout
Time can produce the highest counter electromotive force, counter electromotive force can react on the port of single-chip microcomputer, causes one-chip machine port to damage
Or single chip microcomputer halt.In order to prevent this phenomenon, at one diode of coil two ends reverse parallel connection of relay, when flowing through line
During current vanishes in circle, the induction electromotive force that coil produces will be consumed by the loop of diode and coil composition, from
And ensure the safety of other element in circuit.By arranging optocoupler, the spark that can produce with disconnecting relay contact.
When rf signal reception module receives the radiofrequency signal that emission of radio frequency signals module sends, then single-chip microcomputer sends low
Level is to the input of relay, and now, relay coil is energized, and contact S11 and electric shock S12 remains closed, then will not disconnect
Automobile oil-way or circuit so that automobile can normally travel.
When rf signal reception module cannot receive the radiofrequency signal that emission of radio frequency signals module sends, then single-chip microcomputer is sent out
Sending high level to the input of relay, now, relay coil power-off, contact S11 and S12 disconnects, and electric shock S11 and S13 is even
Logical, then it is disconnected automobile oil-way or circuit.Even if interference is cancelled, then vehicle also will remain in oil-break or off-position, Bu Huizai
Secondary entrance duty, therefore lawless person cannot steal vehicle, it is achieved antitheft effect.
(3) supply module
Supply module can be provided by automobile power source, it is possible to is provided by battery.
A, supply module are provided by automobile power source
Supply module structure chart when Fig. 4 is for being provided by automobile power source.The wherein input of voltage transformation module and automobile electricity
Source connects.12V voltage in car is converted to 3.7V, 5V by voltage transformation module, thus can be emission of radio frequency signals module, radio frequency letter
Number receiver module is powered.
B, supply module are made up of battery.
Owing to chip SI4421 has low in energy consumption, the fuel consumption simultaneously taking account of automobile power source is relatively big, and cost is relatively
Height, therefore under particular demands, it is possible to utilizes the battery as supply module of the present utility model.
(4) tamper module
Tamper module is arranged at automobile line and receives between unit, for controlling automobile oil-way when receiving unit power-off
Or automobile circuit disconnects, tamper module controls power line or electromotor with the oil pump power line of electromotor or the circuit of electromotor
Startup motor wire or the ignition lead of electromotor be connected.
Tamper module can be made up of electric fuse or relay.Fig. 3 is the tamper module being made up of relay.Anti-by arranging
Form removal block, if rf signal reception module is removed by lawless person, then tamper module can disconnect oil circuit or gas circuit so that vapour
Car cannot travel so that lawless person cannot steal vehicle, it is achieved antitheft effect.
When rf signal reception module is working properly, relay coil is energized, and contact S21 and electric shock S22 remains closed,
Then will not disconnect automobile oil-way or circuit so that automobile can normally travel；When the work of rf signal reception module is abnormal, i.e.
When there is the situation that circuit is removed, relay coil power-off, contact S21 and electric shock S22 disconnects, and electric shock S21 and electric shock S23 is even
Logical, then it is disconnected automobile oil-way or circuit.
Tamper module is for continuing "on" position, if power-off is once, then after being once again powered up, even if again by tamper module again
Installing, vehicle also will be continuously maintained in power-off or oil-break state, without rearming.
2, work process of the present utility model
Automobile is in course of normal operation, and SI4421 is controlled by the first control unit in emission of radio frequency signals module
System, makes SI4421 launch radiofrequency signal with the fixed frequency of 868MHz or 915MHz, and the cycle launching signal is that T, T are desirable
0.1s, 0.2s, 0.5s, use the fixed cycle of 0.5s to send signal in this embodiment, and in rf signal reception module
Si4421 receives radiofrequency signal with same period.
When the signal of vehicle-mounted GPS apparatus is disturbed by joyriding, the frequency that SI4421 launches also receives interference, this
Time, rf signal reception module cannot receive radiofrequency signal, and now gas circuit and the oil piping system of Single-chip Controlling automobile stops
Work, then automobile cannot continue to travel.Owing to vehicle-mounted GPS apparatus had recorded the position of automobile, therefore root before being interfered
Vehicle can be positioned, it is simple to the withdrawal of vehicle according to the position of vehicle-mounted GPS apparatus record.
If emission of radio frequency signals module is removed by lawless person, then rf signal reception module cannot receive radiofrequency signal
The radiofrequency signal that transmitter module sends, then single-chip microcomputer sends the high level input to relay, and now, relay coil breaks
Electricity, contact S11 and S12 gets an electric shock disconnection, and electric shock S11 connects with electric shock S13, then be disconnected automobile oil-way or circuit.
If rf signal reception module is removed by lawless person, then the relay power-off in tamper module, then relay
Contact S21 and electric shock S22 disconnect, electric shock S21 connect with electric shock S23, i.e. disconnection oil circuit or gas circuit so that automobile cannot be gone
Sail, it is achieved antitheft effect.
Above embodiment of the present utility model has been described in detail, but described content be only of the present utility model preferably
Embodiment, it is impossible to be considered the practical range for limiting the present invention.All impartial changes made according to this utility model scope with
Improve, within all should still belonging to this patent covering scope.
Claims (7)
1. a bus location ensures alarm, it is characterised in that: include emission of radio frequency signals module, rf signal reception mould
Block, supply module, wherein, described emission of radio frequency signals module includes interconnective transmitter unit, the first control unit, described
Transmitter unit is used for fixed cycle T tranmitting frequency as 868MHz or the radiofrequency signal of 915MHz；Described rf signal reception mould
Block includes receiving unit, the second control unit, switch module, and described reception unit is for receiving described radio frequency with fixed cycle T
Signal, described switch module for controlling the break-make of automobile oil-way or automobile circuit, described second control unit respectively with reception
Unit, switch module are connected；Described supply module is for carrying to described emission of radio frequency signals module, rf signal reception module
Power supply source.
Bus location the most according to claim 1 ensures alarm, it is characterised in that: also include and receive what unit was connected
Tamper module, described tamper module disconnects for controlling automobile oil-way or automobile circuit when receiving unit power-off.
Bus location the most according to claim 2 ensures alarm, it is characterised in that: described switch module, tamper module
Constituted by electric fuse or relay.
Bus location the most according to claim 1 ensures alarm, it is characterised in that: described first control unit, second
Control unit is made up of single-chip microcomputer or DSP or FPGA.
Bus location the most according to claim 1 ensures alarm, it is characterised in that: the radio-frequency transmissions of described transmitter unit
Chip, the radiofrequency receiving chip of described reception unit all use SI4421.
Bus location the most according to claim 1 ensures alarm, it is characterised in that: described supply module includes that voltage turns
Die change block, the input of voltage transformation module is connected with automobile power source.
Bus location the most according to claim 1 ensures alarm, it is characterised in that: described supply module is by battery structure
Become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620805115.2U CN205854088U (en) | 2016-07-28 | 2016-07-28 | Bus location ensures alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620805115.2U CN205854088U (en) | 2016-07-28 | 2016-07-28 | Bus location ensures alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205854088U true CN205854088U (en) | 2017-01-04 |
Family
ID=57652898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620805115.2U Expired - Fee Related CN205854088U (en) | 2016-07-28 | 2016-07-28 | Bus location ensures alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205854088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234967A (en) * | 2017-05-15 | 2017-10-10 | 东莞市中港通电子科技有限公司 | It is a kind of to take precautions against the system and method that car borrows risk |
-
2016
- 2016-07-28 CN CN201620805115.2U patent/CN205854088U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234967A (en) * | 2017-05-15 | 2017-10-10 | 东莞市中港通电子科技有限公司 | It is a kind of to take precautions against the system and method that car borrows risk |
| CN107234967B (en) * | 2017-05-15 | 2019-04-02 | 东莞市中港通电子科技有限公司 | A kind of prevention vehicle borrows the system and method for risk |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6238038B1 (en) | Vehicle remote control system | |
| US8473153B1 (en) | Key fob battery life preservation system and method | |
| CN101973235B (en) | CANBUS network-based whole vehicle quiescent current control method | |
| CN201117098Y (en) | Vehicle tyre pressure monitoring system | |
| CN202022184U (en) | Remote anti-theft alarm for automobile | |
| CN201883792U (en) | Vehicle key-free entering and starting system | |
| CN204915587U (en) | Electric motor car intelligence anti -theft device of low energy consumption | |
| CN103466009B (en) | A kind of motor bike starts intelligent protection system without key | |
| CN104590168B (en) | A kind of Bluetooth communication system based on electric bicycle or battery-operated motor cycle | |
| CN102529607A (en) | Sensor state control method of TPMS (Tire Pressure Monitor System) | |
| CN102951118A (en) | Power failure anti-theft alarm system | |
| CN103476604A (en) | Method for checking tyre pressure in real time | |
| JP6841538B1 (en) | Vehicle system, vehicle system control method, vehicle system control program and storage medium | |
| CN205854088U (en) | Bus location ensures alarm | |
| CN109455165A (en) | A kind of truck fuel and accumulator theftproof system | |
| CN105480168A (en) | Vehicle body controller assembly and control method | |
| CN204915556U (en) | Bluetooth communication system based on electric bicycle or battery -operated motor cycle | |
| CN101934781A (en) | Electric vehicle motor antitheft method and device thereof | |
| CN201566575U (en) | Novel automobile parking power-off protection device | |
| CN201446993U (en) | Anti-theft alarm for electric motorcar | |
| CN105235788B (en) | Electricity rubs wireless theft-proof device | |
| CN103192779B (en) | Automobile power supply control system | |
| KR20070016385A (en) | Dark current control system and method thereof | |
| CN101110135A (en) | Radio frequency anti-theft equipment | |
| CN205016993U (en) | Motor condition monitoring type circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 |