CN104236692B - The anti-cheating device and detection method of weighing system based on digital sensor - Google Patents
The anti-cheating device and detection method of weighing system based on digital sensor Download PDFInfo
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- CN104236692B CN104236692B CN201310229964.9A CN201310229964A CN104236692B CN 104236692 B CN104236692 B CN 104236692B CN 201310229964 A CN201310229964 A CN 201310229964A CN 104236692 B CN104236692 B CN 104236692B
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Abstract
The invention discloses a kind of anti-cheating devices of the weighing system based on digital sensor, including the digital sensor being mounted in weighing system, it is characterized in that the digital sensor includes strain-type electric bridge, the power end of the strain-type electric bridge is connected by switching with digital sensor power interface, the output terminal of the strain-type electric bridge is connected by AD conversion module with processor unit, the processor unit is also connected with the control terminal of switch, the anti-cheating device further includes the current detecting unit being arranged between digital sensor power interface and probe power, the output terminal of the current detecting unit is connected with processor unit.This practicality newly allows digital sensor to enter dormant state by order, reduces the base current of system, conveniently detects increased electric current due to installation cheating device.The advantage of the invention is that simple in structure, anti-remote controler cheating effect is good, is not easy erroneous judgement and fails to judge.
Description
Technical field
The present invention relates to the anti-cheating fields of weighing system, and in particular to a kind of weighing system based on digital sensor
Anti-cheating device and its detection method.
Background technology
The method of distant device control cheating is to increase a radio receiver and Signal averaging device in weighing system, by outer
The remote controler in face sends cheating order, and control signal superimposer works after reception device receives order, changes weighing data, reaches
To the purpose of cheating.
Current anti-cheating method is by receiving and analyzing the wireless signal near weighing-appliance, to determine whether there is work
Disadvantage remote controler works, if it find that if having, then carries out the processing such as alarm.It receives and analysis wireless signal is remotely controlled to detect cheating
The method of device is mainly by being judged the analysis of existing remote controler home control network communication protocol, is easily judged by accident, while cannot
Detect unknown frequency range, the remote controler of unknown protocol.
The content of the invention
It is an object of the invention to provide a kind of anti-cheating dresses of significantly more efficient weighing system based on digital sensor
It puts.
To achieve these goals, technical scheme is as follows：A kind of weighing system based on digital sensor
Anti-cheating device, including the digital sensor being mounted in weighing system, it is characterised in that the digital sensor includes strain-type
Electric bridge, the power end of the strain-type electric bridge are connected by switching with digital sensor power interface, the strain-type electric bridge
Output terminal is connected by AD conversion module with processor unit, and the processor unit is also connected with the control terminal of switch, described
Anti-cheating device further includes the current detecting unit being arranged between digital sensor power interface and probe power, the electric current
The output terminal of detection unit is connected with processor unit.The processor unit is also connected with display unit.The anti-cheating dress
It puts and further includes communication interface, the processor unit, digital sensor power interface are connected with the communication interface.
It is an object of the invention to provide a kind of anti-cheating inspections of significantly more efficient weighing system based on digital sensor
Survey method.
To achieve these goals, technical scheme is as follows：A kind of weighing system based on digital sensor
Anti- cheat detection method, the weighing system include digital sensor, which includes strain-type electric bridge, and feature exists
It is connected in the power end of the strain-type electric bridge by switching with digital sensor power interface, the control terminal of the switch and place
The connection of device unit is managed, is provided with current detecting unit between digital sensor power interface and probe power, the current detecting
The output terminal of unit is connected with processor unit, and signal is sent by processor unit so that and digital sensor enters dormant state,
The general power supply current of the digital probe power interface of current detecting unit detection, and processor unit is passed to, processor list
The general power supply current detected compared with setting value, alarm signal is sent if deviation is more than given threshold by member；As deviation is small
In then digital sensor being caused to exit dormant state equal to given threshold.
This practicality newly allows digital sensor to enter dormant state by order, reduces the base current of system, facilitates detection
Go out increased electric current due to installation cheating device.During work, processor unit sends digital sensing of the sleep command to all connections
Device,（That is control switch disconnects, strain-type electric bridge dead electricity）, digital sensor is automatically into dormant state, current detecting list at this time
The supply current of first detecting system, then compares with normal value, assert if deviation is larger and is mounted with cheating device, is reported
The processing such as alert.The advantage of the invention is that simple in structure, anti-remote controler cheating effect is good, is not easy erroneous judgement and fails to judge.
Description of the drawings
Fig. 1 is the current detecting system block diagram of the present invention.
Fig. 2 is the digital sensor block diagram of the present invention.
Fig. 3 is the FB(flow block) of the present invention.
Specific embodiment
A kind of anti-cheating device of the weighing system based on digital sensor, the number including being mounted in weighing system pass
Sensor, it is characterised in that the digital sensor includes at least one strain-type electric bridge 7, and the power end of the strain-type electric bridge 7 leads to
It crosses switch 8 to be connected with digital sensor power interface 3, the output terminal of the strain-type electric bridge 7 passes through AD conversion module（Modulus turns
Change the mold block）9 are connected with processor unit 5, and control terminal of the processor unit 5 also with switch 8 is connected, the anti-cheating device
The current detecting unit 2 being arranged between digital sensor power interface 3 and probe power 1 is further included, for detecting number
The general power supply current of probe power interface, the output terminal of the current detecting unit 2 are connected with processor unit 5.The processing
Device unit 5 is also connected with display unit 4.The anti-cheating device further includes communication interface 6, and the processor unit 5, number pass
Sensor power interface 3 is connected with the communication interface 6.
As shown in figure 3, the standard sleep electric current of each digital sensor is read by processor unit first（This electric current is passing
Sensor has stored inside it when producing, which is arranged to the prior art, is determined according to the characteristic of sensor）, will be each
Standard sleep electric current adds up to obtain total standard sleep electric current, judges that anti-cheating detects whether to be timed to, in this way then by processor
Unit 5 sends signal, and all digital sensors is made to enter dormant state, i.e., control switch 8 disconnects, 7 dead electricity of strain-type electric bridge, number
Word sensor in a dormant state, is detected the general power supply current of digital probe power interface by current detecting unit 2 at this time（I.e.
Sample total quiescent current）, and processor unit 2 is passed to, processor unit is by the general power supply current detected and normal value
Compare, as deviation is more than given threshold（According to a particular embodiment of the invention, which is total standard sleep electric current
20%）, then alarm signal is sent, and is shown by display；Send normal signal if deviation is less than or equal to given threshold, then etc.
Treat that digital sensor exits dormant state（Processor unit 5 sends Signal-controlled switch 8 and is closed so that strain-type electric bridge 7 obtains electric
To continue to weigh）, the weighing data of digital sensor is read, normal weighing data handles and display.Wherein general power supply current
Normal value and the setting of threshold value can according to field condition be determined by those skilled in the art, be not belonging to what the present invention protected
Scope, details are not described herein.
If without sleep mode, the power consumption of digital sensor is about tens milliamperes, if connecting multiple sensings simultaneously
If device, hundreds of milliampere may be reached, this electric current can change with temperature, time etc., for example change 1%, also
It is to change several milliamperes under normal circumstances, thus has no idea to detect the cheating device of only several milliamperes power consumptions.And
This programme enters sleep mode by all the sensors, the level that system overall power can be made to be reduced to hundreds of microamperes.Even if this
A electric current will change 10%, that uncertain value also only has tens microamperes.Detect the work that several milliamperes even detect several milliamperes of zero point
Disadvantage device is with regard to easy.
Claims (5)
1. a kind of anti-cheating device of the weighing system based on digital sensor, including the digital sensing being mounted in weighing system
Device, it is characterised in that the digital sensor includes strain-type electric bridge, and the power end of the strain-type electric bridge passes through switch and number
Probe power interface connects, and the output terminal of the strain-type electric bridge is connected by AD conversion module with processor unit, described
Processor unit is also connected with the control terminal of switch, the anti-cheating device further include be arranged on digital sensor power interface and
Current detecting unit between power input, the output terminal of the current detecting unit is connected with processor unit, by processor
Unit sends signal so that digital sensor enters dormant state, the digital probe power interface of current detecting unit detection
General power supply current, and be passed to processor unit, processor unit by the general power supply current detected compared with setting value, such as
Deviation then sends alarm signal more than given threshold；If deviation is less than or equal to given threshold digital sensor is caused to exit dormancy
State.
2. anti-cheating device as described in claim 1, it is characterised in that the processor unit is also connected with display unit.
3. anti-cheating device as described in claim 1, it is characterised in that the anti-cheating device further includes communication interface, described
Processor unit, digital sensor power interface are connected with the communication interface.
4. a kind of anti-cheat detection method of the weighing system based on digital sensor, the weighing system includes digital sensing
Device, the digital sensor include strain-type electric bridge, it is characterised in that the power end of the strain-type electric bridge passes through switch and number
Probe power interface connects, and the control terminal of the switch is connected with processor unit, digital sensor power interface and sensing
Current detecting unit is provided between device power supply, the output terminal of the current detecting unit is connected with processor unit, by processor
Unit sends signal so that digital sensor enters dormant state, the digital probe power interface of current detecting unit detection
General power supply current, and be passed to processor unit, processor unit by the general power supply current detected compared with setting value, such as
Deviation then sends alarm signal more than given threshold；If deviation is less than or equal to given threshold digital sensor is caused to exit dormancy
State.
5. anti-cheat detection method as claimed in claim 4, it is characterised in that signal is sent by processor unit so that number
Sensor enters dormant state：Processor sends signal, and control switch disconnects, strain-type electric bridge dead electricity, digital sensing
Device is in a dormant state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229964.9A CN104236692B (en) | 2013-06-09 | 2013-06-09 | The anti-cheating device and detection method of weighing system based on digital sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229964.9A CN104236692B (en) | 2013-06-09 | 2013-06-09 | The anti-cheating device and detection method of weighing system based on digital sensor |
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| CN104236692A CN104236692A (en) | 2014-12-24 |
| CN104236692B true CN104236692B (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310229964.9A Active CN104236692B (en) | 2013-06-09 | 2013-06-09 | The anti-cheating device and detection method of weighing system based on digital sensor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107328460A (en) * | 2017-07-18 | 2017-11-07 | 郑州金恒电子技术有限公司 | A kind of truck scale Weighing method for preventing remote control from practising fraud |
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|---|---|---|---|---|
| EP0971216A2 (en) * | 1998-01-13 | 2000-01-12 | Leon Engineering A.B.E. | Intelligent digital junction box |
| CN201397186Y (en) * | 2009-01-08 | 2010-02-03 | 文前兵 | Anti-remote control check weighting meter |
| CN201397188Y (en) * | 2009-02-26 | 2010-02-03 | 杭州五强电子有限公司 | Anti-cheat electronic price computing scale |
| CN201688910U (en) * | 2010-03-19 | 2010-12-29 | 四川九洲电器集团有限责任公司 | Calibration device for anti-cheating electronic weighing apparatus |
| CN102538935A (en) * | 2012-02-15 | 2012-07-04 | 重庆大雷科技有限公司 | Road surface weighing system for preventing cheat |
| CN203310504U (en) * | 2013-06-09 | 2013-11-27 | 上海耀华称重系统有限公司 | Remote controller treating preventing device based on digital sensor for weighing system |
-
2013
- 2013-06-09 CN CN201310229964.9A patent/CN104236692B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0971216A2 (en) * | 1998-01-13 | 2000-01-12 | Leon Engineering A.B.E. | Intelligent digital junction box |
| CN201397186Y (en) * | 2009-01-08 | 2010-02-03 | 文前兵 | Anti-remote control check weighting meter |
| CN201397188Y (en) * | 2009-02-26 | 2010-02-03 | 杭州五强电子有限公司 | Anti-cheat electronic price computing scale |
| CN201688910U (en) * | 2010-03-19 | 2010-12-29 | 四川九洲电器集团有限责任公司 | Calibration device for anti-cheating electronic weighing apparatus |
| CN102538935A (en) * | 2012-02-15 | 2012-07-04 | 重庆大雷科技有限公司 | Road surface weighing system for preventing cheat |
| CN203310504U (en) * | 2013-06-09 | 2013-11-27 | 上海耀华称重系统有限公司 | Remote controller treating preventing device based on digital sensor for weighing system |
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| Publication number | Publication date |
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| CN104236692A (en) | 2014-12-24 |
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