CN102970051A - Anti-interference wireless communication system - Google Patents
Anti-interference wireless communication system Download PDFInfo
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- CN102970051A CN102970051A CN2012104345242A CN201210434524A CN102970051A CN 102970051 A CN102970051 A CN 102970051A CN 2012104345242 A CN2012104345242 A CN 2012104345242A CN 201210434524 A CN201210434524 A CN 201210434524A CN 102970051 A CN102970051 A CN 102970051A
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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 that adopts radio communication.
Background technology
In the system equipment that utilizes wireless communication module as transfer of data; responsive senser element is such as Laser Barcode Scanner, infrared acquisition, Doppler distance measurement or RFID(radio frequency identification) etc. often can be subjected to the interference of radiofrequency signal and can't work.
The radiofrequency signal of reduction wireless communication chips emission commonly used mainly contains the method that peripheral sensing equipment disturbs in the market:
1, structurally allow wireless communication chips away from senser element, from the distance coupled interference that decays as far as possible.
2, add radome or absorbing material at Sensitive Apparatus, with this annoyance level that weakens.
3, reduce artificially the transmitting power of wireless communication chips, and then reduce disturbance.
But adopt said method can cause following problem:
A), the way that zooms out wireless communication chips and senser element often is subject to complete machine structure, especially the equipment of some compact is difficult to realize.And the way that zooms out wireless communication chips and senser element has also just weakened the degree of disturbing, not at all elimination interference.
B), the mode that adds radome or absorbing material only can weaken the intensity of the interference signal that device receives, and can't fundamentally eliminate interference, the effect that rises very limited.In addition, increase separately radome or absorbing material and also can increase cost, especially the absorbing material price is all very expensive.
C), artificially reducing transmitting power can seriously affect the data transmission quality of wireless communication chips, thereby has weakened significantly the communication function of wireless communication chips.
Summary of the invention
The technical problem to be solved in the present invention is can't effectively eliminate the defective of disturbing between wireless communication chips and the transducer in order to overcome in the prior art, a kind of anti-tampering wireless telecommunication system is provided, operating state by monitoring wireless communication chips or transducer, and then by control wireless communication chips and working sensor state, thereby the operation time of stagger described wireless communication chips and transducer, thereby eliminated up hill and dale interference between described wireless communication chips and the transducer.
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 the described wireless communication chips of output enable, be characterized in, described anti-tampering wireless telecommunication system also comprises an analog switch, and described analog switch is used for controlling conducting or the disconnection of the conductive path of the described enable signal of transmission between described baseband chip and the described wireless communication chips;
Whether described processor exports described enable signal for detection of described baseband chip, if, then close described transducer, the conductive path of the described enable signal of transmission between the described baseband chip of described analog switch conducting and the described wireless communication chips, otherwise close described wireless communication chips, described analog switch disconnects the conductive path of the described enable signal of transmission between described baseband chip and the described wireless communication chips
Perhaps, whether described processor is in running order for detection of described transducer, if, then close described wireless communication chips, described analog switch disconnects the conductive path of the described enable signal of transmission between described baseband chip and the described wireless communication chips, otherwise the conductive path of the described enable signal of transmission between the described baseband chip of described analog switch conducting and the described wireless communication chips.
The present invention controls the enable signal of described wireless communication chips by detecting baseband chip, thereby judge whether wireless communication chips is in running order, and closure sensor correspondingly, thereby the moment of the work of stagger described transducer and wireless communication chips, so can avoid the mutually mutual interference of described transducer and described wireless communication chips.
Wherein enable signal described in the present invention is a kind of triggering signal, when enable signal is come described wireless communication chips, just can make described wireless communication chips open and enter the state of normal operation.
Can also be by the operating state of detecting sensor among the present invention, and close accordingly the function in the moment that described wireless communication chips realizes the work of above-mentioned stagger described transducer and wireless communication chips.
And among the present invention when described transducer is not in running order, conductive path by the described enable signal of transmission between the described baseband chip of analog switch conducting and the described wireless communication chips, thereby so that described wireless communication chips is in the state that stands ready, and then take full advantage of the time period that transducer is not worked.
Preferably, described wireless communication chips is the radio-frequency power amplification chip.
Preferably, described radio-frequency power amplification chip is the RPF88162B of Renesas.
Preferably, described baseband chip is the MTK6252D of Lian Fake company, and described analog switch is the little SGM4175 of company of holy nation.
Preferably, the IN end of described SGM4175 is electrically connected with described processor, the NO end of described SGM4175 is electrically connected with the output that described MTK6252D exports described enable signal, and the COM end of described SGM4175 is electrically connected with the Enable Pin of described wireless communication chips, the NC end ground connection of described SGM4175.
The input signal of the IN end of wherein said SGM4175 is controlled COM end and the conducting of NO end or the conducting of COM end and NC end among the described SGM4175.
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, and the state of normal operation is opened and entered to described wireless communication chips after receiving described enable signal by described port.
On the basis that meets this area general knowledge, above-mentioned each optimum condition, but combination in any namely get the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
Wireless communication unit in the market is not 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, and this comprises network registry and Network Synchronization action between wireless communication chips and the base station.Thereby in the present circumstance, can't monitor the pulse of wireless communication chips emission.
So anti-tampering wireless telecommunication system of the present invention is by the operating state of monitoring wireless communication chips or transducer, and then by control wireless communication chips and working sensor state, thereby the operation time of stagger described wireless communication chips and transducer, that is to say, allow described wireless communication chips and transducer be in the operating state of staggering the time, thereby eliminated up hill and dale the interference between described wireless communication chips and the transducer.
Description of drawings
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 specifies the present invention, but does not therefore limit the present invention among the described scope of embodiments.
The first embodiment
Present embodiment is by increasing the monitoring and controlling circuit to the enable signal of radio frequency power amplification chip in the radio-frequency power amplification chip, make the radio-frequency power amplification chip be in single-chip microcomputer, microprocessor (MCU) or CPU(central processing unit) control under, thereby allow easily radio-frequency power amplification chip and transducer be in the operating state of staggering the time, the cancellation module transmitted pulse is to the interference of transducer so fully.
So as shown in Figure 1, the anti-tampering wireless telecommunication system of present embodiment comprises a RPF88162B chip 1, a MTK6252D chip 2, a MCU3, a 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.Described SGM4175 chip 4 is the analog switch that little company of holy nation produces.
Wherein, described MTK6252D chip 2 is by an enable signal of the described RPF88162B chip 1 of PAEN_BB end output enable, and the described enable signal of present embodiment is high level.
Whether the enable signal of described PAEN_BB end transfers to the Enable Pin PA_ENABLE of described RPF88162B chip 1 thereby MCU3 described in the present embodiment is used for control SGM4175 chip 4.
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 NO end of described SGM4175 chip 4 is electrically connected with the PAEN_BB end of the described enable signal of described MTK6252D chip 2 outputs, the COM end of described SGM4175 chip 4 is electrically connected with the Enable Pin PA_ENABLE of described RPF88162B chip 1, the NC end ground connection of described SGM4175 chip 4.
So when the signal of TX_C end is high level, the COM end of described SGM4175 chip 4 and the conducting of NO end, the level of the Enable Pin PA_ENABLE of described RPF88162B chip 1 is identical with the level of described PAEN_BB end at this moment, therefore the enable signal that enables to move by described MTK6252D chip 2 outputs of described RPF88162B chip 1 is controlled, namely when described MTK6252D chip 2 output high level during 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 the conducting of NC end, this moment described RPF88162B chip 1 Enable Pin PA_ENABLE ground connection, namely this moment, described Enable Pin PA_ENABLE was low level, therefore described RPF88162B chip 1 is closed, and namely enters the state of quitting work.
In addition among Fig. 2 other parts be connected connection or signal setting with port all be for so that the necessary setting of described SGM4175 chip 4 normal operation, so give unnecessary details no longer in detail herein.
MCU3 described in the present embodiment detects described MTK6252D chip 2 and whether exports described enable signal, thereby change the level of described TX_C end, and then whether the enable signal of controlling described MTK6252D chip 2 outputs transfers to the Enable Pin PA_ENABLE of described RPF88162B chip 1.Thereby can control the unlatching of described RPF88162B chip 1 or close.
Specifically, the enable signal of the end of PAEN_BB described in the present embodiment comes from the BPI_BUS3 interface (not shown) of described MTK6252D chip 3, wherein when the PAEN_BB end is high level, mean that described RPF88162B chip 1 is in emission state, otherwise, 1 of described RPF88162B chip is in closed condition, and therefore, MCU3 described in the present embodiment monitors by the state of the enable signal of monitoring PAEN_BB end whether described RPF88162B chip 1 is in emission state.
MCU3 described in the present embodiment is in order to share the BPI_BUS3 interface of same MTK6252D chip 3 with PAEN_BB end, so with the BPI_BUS4 interface (not shown) of MTK6252D chip 3, be defined as the TX_M end and detect for MCU3.
Wherein can revise corresponding RF(radio frequency) drive file, make logical AND PAEN_BB end corresponding to TX_M end identical.When described RPF88162B chip 1 is in emission state, PAEN_BB end (being BPI_BUS3) is high level, TX_M end this moment (being BPI_BUS4) also is high level, otherwise when the PAEN_BB end is low level, the TX_M end also is low level, thereby realizes the tracking and monitoring to the state of RPF88162B chip 1 Enable Pin.
Present embodiment is when described RPF88162B chip 1 is in the emission of radio frequency signals state, 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 was in running order, the level of the TX_C end that described MCU3 can be by dragging down described RPF88162B chip 1 was closed the operating state of the radio-frequency transmissions of described RPF88162B chip 1.Thus, the time of the time of the emission of radio frequency signals of the described RPF88162B chip 1 that staggers and described transducer 5 collection signals, realize the effect that erasure signal disturbs.
The second embodiment:
The difference of present embodiment and the first embodiment is: whether MCU3 described in this example is in running order for detection of described transducer 5, it is the only operating state of detecting sensor 5 of described MCU3, stagger time of emission of radio frequency signals of radio frequency chip and the time of described transducer 5 collection signals thereby further judge whether to close radio frequency chip, erasure signal disturbs.
If transducer 5 is in running order, then close described RPF88162B chip 1 by TX_C end output low level, namely by described SGM4175 chip 4 so that the Enable Pin PA_ENABLE of described RPF88162B chip 1 connect, thereby close described RPF88162B chip 1.
If transducer 5 is not in running order, described by described SGM4175 chip 4 so that the Enable Pin PA_ENABLE of described RPF88162B chip 1 and PAEN_BB end with enable signal of described MTK6252D chip 2 outputs be electrically connected, thereby described when the enable signal of described RPF88162B chip 1 emitting radio frequency signal is controlled in 2 outputs of MTK6252D chip, described RPF88162B chip 1 emitting radio frequency signal.
Although more than described 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 limited by appended claims.Those skilled in the art can make various changes or modifications to these execution modes under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (5)
1. 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 the described wireless communication chips of output enable, it is characterized in that, described anti-tampering wireless telecommunication system also comprises an analog switch, and described analog switch is used for controlling conducting or the disconnection of the conductive path of the described enable signal of transmission between described baseband chip and the described wireless communication chips;
Whether described processor exports described enable signal for detection of described baseband chip, if, then close described transducer, the conductive path of the described enable signal of transmission between the described baseband chip of described analog switch conducting and the described wireless communication chips, otherwise close described wireless communication chips, described analog switch disconnects the conductive path of the described enable signal of transmission between described baseband chip and the described wireless communication chips
Perhaps, whether in running order for detection of described transducer, if, then close described wireless communication chips, described analog switch disconnects the conductive path of the described enable signal of transmission between described baseband chip and the described wireless communication chips, otherwise the conductive path of the described enable signal of transmission between the described baseband chip of described analog switch conducting and the described wireless communication chips.
2. anti-tampering wireless telecommunication system as claimed in claim 1 is characterized in that, described wireless communication chips is the 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. such as each described anti-tampering wireless telecommunication system among the claim 1-3, it is characterized in that described baseband chip is the MTK6252D of Lian Fake company, described analog switch is the SGM4175 of little company of holy nation.
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 NO end of described SGM4175 is electrically connected with the output that described MTK6252D exports described enable signal, the COM end of described SGM4175 is electrically connected with the Enable Pin of described wireless communication chips, the NC end ground connection of described SGM4175.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106998574A (en) * | 2017-05-24 | 2017-08-01 | 维沃移动通信有限公司 | A kind of the called and terminal called, communication system |
| CN107205085A (en) * | 2017-05-23 | 2017-09-26 | 广东欧珀移动通信有限公司 | Data transfer control method, device, storage medium and terminal |
| CN107277912A (en) * | 2017-05-31 | 2017-10-20 | 广东欧珀移动通信有限公司 | A kind of Radio frequency interference processing method, device, storage medium and terminal |
| CN107566646A (en) * | 2017-08-31 | 2018-01-09 | 广东欧珀移动通信有限公司 | Mobile terminal and its sensing data communication means, computer-readable recording medium |
| CN108464853A (en) * | 2018-03-30 | 2018-08-31 | 广东知识城运营服务有限公司 | A kind of orthopedist's special intelligent drilling guiding equipment with cleaning device |
| 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 |
| 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 |
| 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 |
| CN111238669A (en) * | 2018-11-29 | 2020-06-05 | 沈阳拓荆科技有限公司 | Temperature measuring method for semiconductor radio frequency processing device |
| CN111740803A (en) * | 2020-06-18 | 2020-10-02 | 中车长春轨道客车股份有限公司 | Anti-interference device of rail transit electromagnetic communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107205085A (en) * | 2017-05-23 | 2017-09-26 | 广东欧珀移动通信有限公司 | Data transfer control method, device, storage medium and terminal |
| CN106998574A (en) * | 2017-05-24 | 2017-08-01 | 维沃移动通信有限公司 | A kind of the called and terminal called, communication system |
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| 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 |
| CN108464853A (en) * | 2018-03-30 | 2018-08-31 | 广东知识城运营服务有限公司 | A kind of orthopedist's special intelligent drilling guiding equipment with cleaning device |
| 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 |
| 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 |
| CN111238669A (en) * | 2018-11-29 | 2020-06-05 | 沈阳拓荆科技有限公司 | Temperature measuring method for semiconductor radio frequency processing 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 |
| CN111740803A (en) * | 2020-06-18 | 2020-10-02 | 中车长春轨道客车股份有限公司 | Anti-interference device of rail transit electromagnetic communication system |
| 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 |
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