CN201503546U - Universal weighing apparatus anti-cheat monitor - Google Patents
Universal weighing apparatus anti-cheat monitor Download PDFInfo
- Publication number
- CN201503546U CN201503546U CN2009202102023U CN200920210202U CN201503546U CN 201503546 U CN201503546 U CN 201503546U CN 2009202102023 U CN2009202102023 U CN 2009202102023U CN 200920210202 U CN200920210202 U CN 200920210202U CN 201503546 U CN201503546 U CN 201503546U
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- weighing apparatus
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Abstract
The utility model relates to a universal weighing apparatus anti-cheat monitor which is used for monitoring the working condition of a weighing apparatus. When weighing, a weighing element converts the weight into electrical signals, and divides the signals into two paths; one path of the signals is subjected to amplification and analog-digital conversion to the anti-cheat monitor to obtain the weighing result; the other path of the signals passes through a self circuit of the weighing apparatus to obtain the weighing result; the two results are compared, if the difference is in the allowable range, an anti-cheat controller allows the result to be displayed; otherwise, the cheating information and frequency are recorded; when cheating records achieve N times, the weighing apparatus is locked and can not work, and the error information is displayed, wherein N is a positive integer and can be set in advance. The staff in a quality control department can hold the infrared device to control the weighing apparatus to show cheating information, thus facilitating the industrial and commercial quality control department to manage the market, and safeguarding legitimate rights and interests of consumers to the greatest extent.
Description
Technical field
The utility model relates to weighing apparatus anti-tampering technology field, and especially a kind of general weighing apparatus is prevented the cheat monitoring device.
Background technology
Weighing apparatus is to utilize the gravity that acts on the object, and weight is changed into an electric signal that is directly proportional with it, determines the quality of object.Electronic scale has become the important means of automatic weighting control and Trade Measures, is the requisite technical tool of modernization construction.But inventor of the present utility model finds, at present because interests are ordered about, and many weighing apparatus fabricators have done trick on the software of weighing apparatus or hardware, make its on weighing results with reality deviation to some extent, to reach its economic aim.For example, the fixing key combination of input is revised the counterweight value on the weighing apparatus keyboard.Use the dealer of this weighing apparatus,, seize unlawful interests on the one hand, escape the inspection of industrial and commercial quality inspection unit on the other hand, damaged consumer's legitimate rights and interests by the password that the keyboard input configures.
Summary of the invention
Technical problem to be solved in the utility model provides the anti-cheat monitoring device of a kind of general weighing apparatus, thereby overcomes existing electronic scale this deficiency of practising fraud.
The technical scheme that its technical matters that solves the utility model adopts is: provide a kind of general weighing apparatus to prevent the cheat monitoring device, comprise weighing apparatus, the resulting voltage signal of the bridge type magnetic sensor of weighing apparatus is divided into two-way, wherein one the tunnel successively through first voltage amplifier, first analog to digital converter to the first central processing unit, another road of described voltage signal enters the anti-cheat monitoring device circuit of weighing apparatus, the anti-cheat monitoring circuit of described weighing apparatus is by second voltage amplifier, second analog to digital converter is connected successively with second central processing unit, second central processing unit respectively with infrared facility, flash memory circuit connects; Described second central processing unit also is connected with described first central processing unit; The display device of weighing apparatus is connected with described second central processing unit.
The electronic component encapsulation of described anti-cheat monitoring device circuit is in first black box, and described first black box leaves the interface of accepting voltage signal, the connecting interface of first central processing unit and second central processing unit, the interface of display device and anti-cheat monitoring circuit; Electronic component encapsulation except that described anti-cheat monitoring device circuit is in second black box, and described second black box leaves and is used to draw the voltage signal of bridge type magnetic sensor conversion and the connecting interface of first central processing unit and second central processing unit; Described first black box can be assigned on second black box, and described interface links to each other with connecting interface with described connecting interface respectively.
Described watch-dog also comprises handheld device, and described handheld device is corresponding with the infrared facility of anti-cheat monitoring device circuit, by infrared controlled containing device display device, shows the information of its cheating.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the utility model compared with prior art, have following advantage and good effect: the utility model is that bridge type magnetic sensor changes into electric signal with object gravity in weighing apparatus, this electric signal is divided into two-way, respectively by weighing apparatus self circuit and the anti-cheat monitoring device circuit of weighing apparatus, result to this two paths of signals compares, judge whether weighing apparatus practises fraud, this watch-dog can demonstrate cheating information by handheld device, thereby convenient industrial and commercial quality testing department has also farthest been safeguarded consumer's legitimate rights and interests simultaneously for the management in market.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model;
Fig. 2 is the method for attachment figure of anti-cheat monitoring device circuit of the utility model weighing apparatus and weighing apparatus self circuit;
Fig. 3 is the utility model handset structure figure.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment of the present utility model relates to the anti-cheat monitoring device of a kind of general weighing apparatus, comprise weighing apparatus, the bridge type magnetic sensor 1 resulting voltage signal of weighing apparatus is divided into two-way, one the tunnel through first voltage amplifier 2, first analog to digital converter, 3 to first central processing units 4, another road is through the anti-cheat monitoring device circuit of weighing apparatus, the anti-cheat monitoring circuit of this weighing apparatus is by second voltage amplifier 6, second analog to digital converter 7 is connected successively with second central processing unit 8, and second central processing unit 8 is connected with infrared facility 10, flash memory circuit 9 respectively; This second central processing unit 8 also is connected with first central processing unit 4; The display device 11 of weighing apparatus is connected with second central processing unit 8.When weighing apparatus was not practised fraud, the display 11 of weighing apparatus can normally show; When weighing apparatus was practised fraud, anti-cheat monitoring device record cheating information of weighing apparatus and number of times when the weighing apparatus cheating reaches N time, automatically locked weighing apparatus, do not allow its work, and show error message, and wherein N is a positive integer, can set in advance.The anti-cheat monitoring device of this weighing apparatus also comprises handheld device, and this handheld device is controlled the information that weighing apparatus shows its cheating by infrared ray.
As shown in Figure 1, the bridge type magnetic sensor 1 of weighing apparatus changes into voltage signal with the weight of the object of weighing, this signal is divided into two-way: one tunnel voltage amplifier 2 through weighing apparatus self circuit, A/D converter 3 to CPU4 obtains measurement result, and wherein, A/D converter is exactly an analog to digital converter; Another road obtains measurement result through the anti-cheat monitoring device circuit 5 of general weighing apparatus.Wherein, general weighing apparatus is prevented cheat monitoring device circuit by voltage amplifier circuit 6, A/D change-over circuit 7, and CPU8 connects successively, and this CPU8 connects attire respectively and puts 10, Flash circuit 9, wherein, the Flash circuit is exactly a flash memory circuit.The anti-cheat monitoring device circuit of this weighing apparatus can be settled by the third party, settles as quality testing department.Wherein, CPU8 also is connected with CPU4, and the display device 11 of weighing apparatus is connected with CPU8, and wherein, display device 11 is settled by weighing apparatus manufacturer, as long as reserve corresponding interface in process of production, gets final product with the connection that makes things convenient for the anti-cheat monitoring device circuit of weighing apparatus.The result of this two paths of signals is compared, if the difference of this two paths of signals is in allowed band, the anti-cheat monitoring device circuit control of this weighing apparatus display device 11 display result then; Otherwise, this cheating information of record and counting in flash memory circuit, the cheating information and the number of times that write down in this flash memory circuit can show by handheld device.When the cheating number of times reaches N time (as 5 times), this weighing apparatus of 5 lockings of the anti-cheat monitoring device circuit of weighing apparatus does not allow its work, and shows the error message of " ERROR ", and wherein N is a positive integer, can set in advance.
Shown in Figure 2 is the method for attachment of anti-cheat monitoring device circuit of weighing apparatus of the present utility model and weighing apparatus self circuit.The electronic component encapsulation of being produced by weighing apparatus manufacturer except that anti-cheating circuit and leaves interface 17 in black box 16.This interface 17 is used to draw the voltage signal that bridge type magnetic sensor 1 transforms, and as the connecting interface of CPU4 and CPU8.The electronic component of anti-cheating circuit is arranged in black box 12, and this black box 12 leaves the interface 13 of accepting voltage signal, and also has the connecting interface 14 as CPU4 and CPU8, and display device 11 and the interface 15 of preventing the cheating circuit.Black box 12 can assign on the black box 16, and wherein, interface 13 links to each other with interface 17 respectively with interface 14.
Shown in Figure 3 is the structure of handheld device.3 buttons are installed on this handheld device is: " TEST ", " RESET ", " CHEAT ".Whether corresponding operation is respectively the test monitoring device, restarts watch-dog, detect and practise fraud.When tested weighing apparatus is equipped with anti-cheat monitoring device, press " TEST " key, then can sound a buzzer with prompting.Press " RESET " key, then can restart anti-cheat monitoring device.When pressing " CHEAT " key, if this weighing apparatus cheating then shows the cheating number of times on the weighing apparatus device, otherwise, show " CHEAT0 ".
Be not difficult to find, the utility model is that bridge type magnetic sensor changes into electric signal with object gravity in weighing apparatus, this electric signal is divided into two-way, respectively by weighing apparatus self circuit and the anti-cheat monitoring device circuit of weighing apparatus, whether relatively test weighing apparatus through this two paths of signals practises fraud, and this watch-dog can also demonstrate cheating information by handheld device, and convenient industrial and commercial quality testing department has also farthest been safeguarded consumer's legitimate rights and interests simultaneously for the management in market.
Though disclose the utility model with its preferred form, for the person of ordinary skill of the art, under the condition that does not depart from the design of the present utility model that proposes by claims and scope, can also carry out many improvement.
Claims (3)
1. a general weighing apparatus is prevented the cheat monitoring device, comprise weighing apparatus, the resulting voltage signal of the bridge type magnetic sensor of weighing apparatus (1) is divided into two-way, wherein one the tunnel successively through first voltage amplifier (2), first analog to digital converter (3) is to first central processing unit (4), it is characterized in that, another road of described voltage signal enters the anti-cheat monitoring device circuit (5) of weighing apparatus, the anti-cheat monitoring circuit (5) of described weighing apparatus is by second voltage amplifier (6), second analog to digital converter (7) is connected successively with second central processing unit (8), second central processing unit (8) respectively with infrared facility (10), flash memory circuit (9) connects; Described second central processing unit (8) also is connected with described first central processing unit (4); The display device of weighing apparatus (11) is connected with described second central processing unit (8).
2. weighing apparatus according to claim 1 is prevented the cheat monitoring device, it is characterized in that, the electronic component encapsulation of described anti-cheat monitoring device circuit (5) is in first black box (12), described first black box (12) leaves the interface (13) of accepting voltage signal, the connecting interface (14) of first central processing unit (4) and second central processing unit (8), the interface (15) of display device (11) and anti-cheat monitoring circuit (5); Electronic component encapsulation except that described anti-cheat monitoring device circuit is in second black box (16), and described second black box (16) leaves and is used to draw the voltage signal of bridge type magnetic sensor (1) conversion and the connecting interface (17) of first central processing unit (4) and second central processing unit (8); Described first black box (12) can be assigned on second black box (16), and described interface (13) links to each other with connecting interface (14) with described connecting interface (17) respectively.
3. weighing apparatus according to claim 1 is prevented the cheat monitoring device, it is characterized in that described watch-dog also comprises handheld device, described handheld device is corresponding with the infrared facility (10) of anti-cheat monitoring device circuit, by infrared controlled containing device display device (11), show the information of its cheating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202102023U CN201503546U (en) | 2009-09-25 | 2009-09-25 | Universal weighing apparatus anti-cheat monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202102023U CN201503546U (en) | 2009-09-25 | 2009-09-25 | Universal weighing apparatus anti-cheat monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201503546U true CN201503546U (en) | 2010-06-09 |
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ID=42454476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202102023U Expired - Fee Related CN201503546U (en) | 2009-09-25 | 2009-09-25 | Universal weighing apparatus anti-cheat monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201503546U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424170A (en) * | 2013-08-08 | 2013-12-04 | 淮安市计量测试所 | Digital indicating balance with anti-cheating function |
| CN105091998A (en) * | 2015-09-18 | 2015-11-25 | 广州计量检测技术研究院 | Electronic truck scale anti-cheating monitoring system and method |
| CN109916495A (en) * | 2019-01-18 | 2019-06-21 | 深圳市计量质量检测研究院（国家高新技术计量站、国家数字电子产品质量监督检验中心） | Electronic scale monitoring method and system |
| CN110132390A (en) * | 2019-05-22 | 2019-08-16 | 查常财 | The electronic scale of cheating dynamics can be reduced |
-
2009
- 2009-09-25 CN CN2009202102023U patent/CN201503546U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424170A (en) * | 2013-08-08 | 2013-12-04 | 淮安市计量测试所 | Digital indicating balance with anti-cheating function |
| CN103424170B (en) * | 2013-08-08 | 2015-11-25 | 淮安市计量测试所 | Digital indicating scale with anti-cheating function |
| CN105091998A (en) * | 2015-09-18 | 2015-11-25 | 广州计量检测技术研究院 | Electronic truck scale anti-cheating monitoring system and method |
| CN109916495A (en) * | 2019-01-18 | 2019-06-21 | 深圳市计量质量检测研究院（国家高新技术计量站、国家数字电子产品质量监督检验中心） | Electronic scale monitoring method and system |
| CN110132390A (en) * | 2019-05-22 | 2019-08-16 | 查常财 | The electronic scale of cheating dynamics can be reduced |
| CN110132390B (en) * | 2019-05-22 | 2021-08-06 | 简刚 | Electronic scale capable of reducing cheating force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20120925 |