CN102970051B - Anti-interference wireless communication system - Google Patents
Anti-interference wireless communication system Download PDFInfo
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- CN102970051B CN102970051B CN201210434524.2A CN201210434524A CN102970051B CN 102970051 B CN102970051 B CN 102970051B CN 201210434524 A CN201210434524 A CN 201210434524A CN 102970051 B CN102970051 B CN 102970051B
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- 238000004891 communication Methods 0.000 title claims abstract description 70
- 230000003321 amplification Effects 0.000 claims description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 description 6
- 239000011358 absorbing material Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The invention discloses an anti-interference wireless communication system. The system comprises a wireless communication chip, a baseband chip, a processor, an analog switch and one or more sensors, wherein the baseband chip is used for outputting an enabling signal of the wireless communication chip, the analog switch is used for controlling the connection and the disconnection of a conductive access between the baseband chip and the wireless communication chip, which is used for transmitting the enabling signal, the processor is used for detecting whether the baseband chip transmits the enabling signal or the sensor is in a working state, if the baseband chip transmits the enabling signal or the sensor is in a working state, the conductive access between the baseband chip and the wireless communication chip is connected, and otherwise, the conductive access between the baseband chip and the wireless communication chip is disconnected. The working state of the wireless communication chip or the sensor is monitored, the wireless communication chip and the sensor are in a staggered working state and the interference between the wireless communication chip and the sensor is eliminated.
Description
Technical field
The present invention relates to a kind of anti-tampering wireless telecommunication system, particularly relate to a kind of anti-tampering wireless telecommunication system adopting radio communication.
Background technology
Utilizing wireless communication module as in the system equipment of transfer of data; responsive senser element, such as Laser Barcode Scanner, infrared acquisition, Doppler distance measurement or RFID(radio frequency identification) etc. often cannot normally can work by the interference of radiofrequency signal.
The radiofrequency signal that reduction wireless communication chips conventional is in the market launched mainly contains the method that peripheral sensing equipment disturbs:
1, structurally allow wireless communication chips away from senser element, from apart from the coupled interference that decays as far as possible.
2, on Sensitive Apparatus, add radome or absorbing material, weaken annoyance level with this.
3, reduce the transmitting power of wireless communication chips artificially, and then reduce interference.
But adopt said method can cause following problem:
A) way, zooming out wireless communication chips and senser element is often limited to complete machine structure, especially to the very difficult realization of the equipment of some compact.And the way zooming out wireless communication chips and senser element also just reduces the degree of interference, does not eliminate interference at all.
B), the mode that adds radome or absorbing material only can weaken the intensity of the interference signal that device receives, and fundamentally cannot eliminate interference, to play effect very limited.In addition, increase radome or absorbing material also can increase cost separately, and especially absorbing material price is all very expensive.
C) reduce the data transmission quality that transmitting power seriously can affect wireless communication chips, artificially, thus weaken the communication function of wireless communication chips significantly.
Summary of the invention
The technical problem to be solved in the present invention cannot effectively eliminate the defect disturbed between wireless communication chips and transducer to overcome in prior art, provide a kind of anti-tampering wireless telecommunication system, by monitoring the operating state of wireless communication chips or transducer, and then by controlling wireless communication chips and working sensor state, thus the operation time of stagger described wireless communication chips and transducer, thus eliminate the interference between described wireless communication chips and transducer up hill and dale.
The present invention solves above-mentioned technical problem by following technical proposals:
The invention provides a kind of anti-tampering wireless telecommunication system, comprise a wireless communication chips, a baseband chip, a processor and one or more transducer, described baseband chip is used for an enable signal of wireless communication chips described in output enable, be characterized in, described anti-tampering wireless telecommunication system also comprises an analog switch, and described analog switch is turned on or off for the conductive path that controls to transmit described enable signal between described baseband chip and described wireless communication chips;
Whether described processor exports described enable signal for detecting described baseband chip, if, then close described transducer, the conductive path of described enable signal is transmitted between baseband chip and described wireless communication chips described in described analog switch conducting, otherwise close described wireless communication chips, described analog switch disconnects the conductive path transmitting described enable signal between described baseband chip and described wireless communication chips
Or, whether described processor is in running order for detecting described transducer, if, then close described wireless communication chips, described analog switch disconnects the conductive path transmitting described enable signal between described baseband chip and described wireless communication chips, otherwise transmits the conductive path of described enable signal between baseband chip and described wireless communication chips described in described analog switch conducting.
The present invention controls the enable signal of described wireless communication chips by detecting baseband chip, thus judge that whether wireless communication chips is in running order, and correspondingly closure sensor, thus the moment of the work of stagger described transducer and wireless communication chips, so the mutual interference of described transducer and described wireless communication chips can be avoided.
Wherein enable signal described in the present invention is a kind of triggering signal, when enable signal comes described wireless communication chips time, described wireless communication chips just can be made to open and enter the normal state worked.
By the operating state of detecting sensor, and the function that described wireless communication chips realizes the moment of the work of above-mentioned stagger described transducer and wireless communication chips can also be closed accordingly in the present invention.
And in the present invention when described transducer is not in running order, by transmitting the conductive path of described enable signal described in analog switch conducting between baseband chip and described wireless communication chips, thus make described wireless communication chips be in the state stood ready, and then make full use of the time period that transducer do not work.
Preferably, described wireless communication chips is radio-frequency power amplification chip.
Preferably, described radio-frequency power amplification chip is Renesas RPF88162B.
Preferably, described baseband chip is the MTK6252D of Lian Fake company, and described analog switch is Sheng Bangwei company SGM4175.
Preferably, the IN end of described SGM4175 is electrically connected with described processor, the output that NO end and the described MTK6252D of described SGM4175 export described enable signal is electrically connected, and the COM end of described SGM4175 is electrically connected with the Enable Pin of described wireless communication chips, and the NC of described SGM4175 holds ground connection.
The input signal of the IN end of wherein said SGM4175 controls the conducting of COM end and NO end in described SGM4175 or the conducting of COM end and NC end.
And the Enable Pin of wireless communication chips described in the present invention refers to that described wireless communication chips receives the port of enable signal, described wireless communication chips, by after described port accepts to described enable signal, is opened and enters the normal state worked.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
Wireless communication unit is not in the market mostly to the monitoring function of the radiofrequency signal of wireless communication chips, and the generation of the radiofrequency signal of existing wireless communication chips is again randomness, this comprises network registry between wireless communication chips and base station and Network Synchronization action.Thus in the present circumstance, cannot monitor the pulse that wireless communication chips is launched.
So anti-tampering wireless telecommunication system of the present invention is by monitoring the operating state of wireless communication chips or transducer, and then by controlling wireless communication chips and working sensor state, thus the operation time of stagger described wireless communication chips and transducer, that is, allow described wireless communication chips and transducer be in operating state of staggering the time, thus eliminate the interference between described wireless communication chips and transducer up hill and dale.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of anti-tampering wireless telecommunication system of the present invention.
Fig. 2 is the circuit connection diagram of the analog switch of the first embodiment of the present invention.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
First embodiment
The present embodiment by increasing the monitoring and controlling circuit of the enable signal of radio frequency power amplifier chip in radio-frequency power amplification chip, make radio-frequency power amplification chip be in single-chip microcomputer, microprocessor (MCU) or CPU(central processing unit) control under, thus allow radio-frequency power amplification chip and transducer be in operating state of staggering the time easily, like this can completely cancellation module transmitted pulse to the interference of transducer.
So as shown in Figure 1, the anti-tampering wireless telecommunication system of the present embodiment comprises RPF88162B chip 1, MTK6252D chip 2, MCU3, SGM4175 chip 4 and a transducer 5.The radio-frequency power amplification chip that wherein said RPF88162B chip 1 is produced for Renesas.The baseband chip that described MTK6252D chip 2 is produced for Lian Fake company.The analog switch that described SGM4175 chip 4 is produced for Sheng Bangwei company.
Wherein, described MTK6252D chip 2 holds an enable signal of RPF88162B chip 1 described in output enable by PAEN_BB, and enable signal described in the present embodiment is high level.
MCU3 described in the present embodiment is for control SGM4175 chip 4 thus whether the enable signal that described PAEN_BB is held transfers to the Enable Pin PA_ENABLE of described RPF88162B chip 1.
Specifically, as shown in Figure 2, the IN end of described SGM4175 chip 4 is electrically connected with the control end TX_C of described MCU3, the PAEN_BB that the NO end of described SGM4175 chip 4 and described MTK6252D chip 2 export described enable signal holds and is electrically connected, the COM end of described SGM4175 chip 4 is electrically connected with the Enable Pin PA_ENABLE of described RPF88162B chip 1, and the NC of described SGM4175 chip 4 holds ground connection.
So when the signal of TX_C end is high level, the COM end of described SGM4175 chip 4 and NO hold conducting, now the level of the Enable Pin PA_ENABLE of described RPF88162B chip 1 is identical with the level that described PAEN_BB holds, therefore the enable signal that the enable action of described RPF88162B chip 1 is exported by described MTK6252D chip 2 controls, namely, when described MTK6252D chip 2 exports high level to the Enable Pin PA_ENABLE of described RPF88162B chip 1, described RPF88162B chip 1 enters the operating state of emitting radio frequency signal.
When the signal of TX_C end is low level, the COM end of described SGM4175 chip 4 and NC hold conducting, the now Enable Pin PA_ENABLE ground connection of described RPF88162B chip 1, namely now described Enable Pin PA_ENABLE is low level, therefore described RPF88162B chip 1 is closed, and namely enters the state of quitting work.
In addition in Fig. 2, other parts and the connection of port or signal setting are all for making the normally necessary setting of work of described SGM4175 chip 4, so be no longer described in detail herein.
MCU3 described in the present embodiment detects described MTK6252D chip 2 and whether exports described enable signal, thus change the level of described TX_C end, and then whether the enable signal controlling the output of described MTK6252D chip 2 transfers to the Enable Pin PA_ENABLE of described RPF88162B chip 1.Thus unlatching or the closedown of described RPF88162B chip 1 can be controlled.
Specifically, the enable signal that PAEN_BB described in the present embodiment holds comes from the BPI_BUS3 interface (not shown) of described MTK6252D chip 3, wherein when PAEN_BB end is for high level, mean that described RPF88162B chip 1 is in emission state, otherwise, described RPF88162B chip 1 is in closed condition, and therefore, by the state of the enable signal of monitoring PAEN_BB end, MCU3 described in the present embodiment monitors whether described RPF88162B chip 1 is in emission state.
MCU3 described in the present embodiment, in order to the BPI_BUS3 interface with the shared same MTK6252D chip 3 of PAEN_BB end, so by the BPI_BUS4 interface (not shown) of MTK6252D chip 3, is defined as TX_M end and detects for MCU3.
Wherein can revise corresponding RF(radio frequency) drive file, make TX_M hold corresponding logical AND PAEN_BB to hold identical.When described RPF88162B chip 1 is in emission state, PAEN_BB end (i.e. BPI_BUS3) is high level, now TX_M end (i.e. BPI_BUS4) is also high level, otherwise when PAEN_BB end is for low level, TX_M end is also low level, thus realizes the tracking and monitoring to the state of RPF88162B chip 1 Enable Pin.
The present embodiment is when being in emission of radio frequency signals state when described RPF88162B chip 1, and its TX M end correspondingly can report high level to described MCU3, and described MCU3 can send control command and close described transducer 5; Otherwise when transducer 5 is in running order, described MCU3 can close the operating state of the radio-frequency transmissions of described RPF88162B chip 1 by the level of the TX_C end dragging down described RPF88162B chip 1.Thus, the time of the emission of radio frequency signals of the described RPF88162B chip 1 that staggers and the time of described transducer 5 collection signal, the effect of erasure signal interference is realized.
Second embodiment:
The difference of the present embodiment and the first embodiment is: whether MCU3 described in this example is in running order for detecting described transducer 5, the i.e. operating state of described MCU3 only detecting sensor 5, thus judge whether to need to close radio frequency chip further to the time of the time of the emission of radio frequency signals of the radio frequency chip that staggers with described transducer 5 collection signal, erasure signal interference.
If transducer 5 is in running order, then output low level is held to close described RPF88162B chip 1 by TX_C, namely by described SGM4175 chip 4, the Enable Pin PA_ENABLE of described RPF88162B chip 1 is connect, thus close described RPF88162B chip 1.
If transducer 5 is not in running order, the described PAEN_BB end electrical connection making the Enable Pin PA_ENABLE of described RPF88162B chip 1 by described SGM4175 chip 4 and there is the enable signal that described MTK6252D chip 2 exports, thus described when MTK6252D chip 2 exports the enable signal controlling described RPF88162B chip 1 emitting radio frequency signal, described RPF88162B chip 1 emitting radio frequency signal.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection scope of the present invention.
Claims (5)
1. an anti-tampering wireless telecommunication system, comprise a wireless communication chips, a baseband chip, a processor and one or more transducer, described baseband chip is used for an enable signal of wireless communication chips described in output enable, it is characterized in that, described anti-tampering wireless telecommunication system also comprises an analog switch, and described analog switch is turned on or off for the conductive path that controls to transmit described enable signal between described baseband chip and described wireless communication chips;
Whether described processor exports described enable signal for detecting described baseband chip, if, then close described transducer, the conductive path of described enable signal is transmitted between baseband chip and described wireless communication chips described in described analog switch conducting, otherwise close described wireless communication chips, described analog switch disconnects the conductive path transmitting described enable signal between described baseband chip and described wireless communication chips
Or, whether in running order for detecting described transducer, if, then close described wireless communication chips, described analog switch disconnects the conductive path transmitting described enable signal between described baseband chip and described wireless communication chips, otherwise transmits the conductive path of described enable signal between baseband chip and described wireless communication chips described in described analog switch conducting.
2. anti-tampering wireless telecommunication system as claimed in claim 1, is characterized in that, described wireless communication chips is radio-frequency power amplification chip.
3. anti-tampering wireless telecommunication system as claimed in claim 2, is characterized in that, described radio-frequency power amplification chip is the RPF88162B of Renesas.
4. the anti-tampering wireless telecommunication system according to any one of claim 1-3, is characterized in that, described baseband chip is the MTK6252D of Lian Fake company, and described analog switch is the SGM4175 of Sheng Bangwei company.
5. anti-tampering wireless telecommunication system as claimed in claim 4, it is characterized in that, the IN end of described SGM4175 is electrically connected with described processor, the output that NO end and the described MTK6252D of described SGM4175 export described enable signal is electrically connected, the COM end of described SGM4175 is electrically connected with the Enable Pin of described wireless communication chips, and the NC of described SGM4175 holds ground connection.
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| CN201210434524.2A CN102970051B (en) | 2012-11-02 | 2012-11-02 | Anti-interference wireless communication system |
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| CN201210434524.2A CN102970051B (en) | 2012-11-02 | 2012-11-02 | Anti-interference wireless communication system |
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| CN107205085B (en) * | 2017-05-23 | 2020-05-12 | Oppo广东移动通信有限公司 | Data transmission control method and device, computer readable storage medium and terminal |
| CN106998574B (en) * | 2017-05-24 | 2020-10-27 | 维沃移动通信有限公司 | Called party method, called terminal and communication system |
| CN107277912B (en) * | 2017-05-31 | 2020-03-10 | Oppo广东移动通信有限公司 | Radio frequency interference processing method, device, storage medium and terminal |
| CN107566646B (en) * | 2017-08-31 | 2020-03-10 | Oppo广东移动通信有限公司 | Mobile terminal, sensor data communication method thereof, and computer-readable storage medium |
| CN108512916A (en) * | 2018-03-22 | 2018-09-07 | 江苏麦酷博信息科技有限公司 | A kind of wireless telecommunications module system and its working method based on Internet of Things |
| CN108464853B (en) * | 2018-03-30 | 2021-08-13 | 深圳市第二人民医院(深圳市转化医学研究院) | Special intelligent drilling guide equipment with cleaning device for orthopedic doctor |
| CN108652705A (en) * | 2018-03-30 | 2018-10-16 | 广东知识城运营服务有限公司 | A kind of medicinal intelligent drilling guide device |
| CN111238669B (en) * | 2018-11-29 | 2022-05-13 | 拓荆科技股份有限公司 | Temperature measuring method for semiconductor radio frequency processing device |
| CN110889480A (en) * | 2019-12-23 | 2020-03-17 | 浙江悦和科技有限公司 | Passive sensing circuit and control method thereof |
| CN111740803B (en) * | 2020-06-18 | 2024-02-13 | 中车长春轨道客车股份有限公司 | Anti-interference device of rail transit electromagnetic communication system |
| EP4019908B1 (en) * | 2020-12-28 | 2024-01-17 | Kamstrup A/S | Fluid consumption meter and method for detecting sound in a piping system |
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| US7933577B2 (en) * | 2005-11-29 | 2011-04-26 | Electronics And Telecommunications Research Institute | Method and apparatus for sharing portable terminal in CDMA system and mobile RFID system |
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Address after: 200233 room 701, No. 1801 B, Hongmei Road, Xuhui District, Shanghai Patentee after: QUECTEL WIRELESS SOLUTIONS CO., LTD. Address before: 200233 Shanghai city Xuhui District Tianzhou Road No. 99 building 13 Room 501 Patentee before: Shanghai Quectel Communication Technology Co.,Ltd. |
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Address after: 200233 room 193, 2f, No. 25-1, Hongcao Road, Xuhui District, Shanghai Patentee after: QUECTEL WIRELESS SOLUTIONS Co.,Ltd. Address before: 200233 room 701, No. 1801 B, Hongmei Road, Xuhui District, Shanghai Patentee before: QUECTEL WIRELESS SOLUTIONS Co.,Ltd. |