CN104807528A - Intelligent sensor junction box - Google Patents
Intelligent sensor junction box Download PDFInfo
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- CN104807528A CN104807528A CN201410036346.7A CN201410036346A CN104807528A CN 104807528 A CN104807528 A CN 104807528A CN 201410036346 A CN201410036346 A CN 201410036346A CN 104807528 A CN104807528 A CN 104807528A
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Abstract
The invention relates to an intelligent sensor junction box comprising a sensor interface module which is coupled to a plurality of external sensors through wiring of corresponding first sensor wires, a data acquisition module which is coupled to the sensor interface module and used for acquiring initial signals from the sensors, an analog-to-digital conversion module which is used for performing analog-to-digital conversion on the acquired signals and outputting the signals, a processing module which is coupled to the output end of the analog-to-digital conversion module and used for receiving and processing the signals after analog-to-digital conversion to monitor the states of the sensors in real time and outputting signals indicating the states of the sensors, and a communication module which is coupled to the output end of the processing module and used for receiving and outputting the signals indicating the states of the sensors. The intelligent sensor junction box of the invention can achieve multiple intelligent functions such as automatic angle difference adjusting and alarming under the condition that the normal wiring function is not affected and the size and the connection mode are not changed.
Description
Technical field
The present invention relates to Industrial Weighing field, particularly relate to the sensor terminal box used in the field of weighing.
Background technology
In Industrial Weighing field, on weighing platform, load the difference that certain weight (1/3rd ranges) is placed on diverse location, as long as the absolute value of difference is more than or equal to a scale division value, just think that this scale has angular difference.The existence of angular difference can affect the accuracy of weighing.
In the industrial instrument design of existing industrial instrument or the same industry, most what adopt is common terminal box.One or more sensor, via corresponding pickup wire, is coupled to instrument by terminal box.Common terminal box of the prior art only has single connection function usually, needs the deficiency of manual adjustments angular difference, although circuit is simply with low cost, and circuit intelligent poor.When the operative sensor deterioration of sensitivity in multiple sensor, wiring come off or wiring error, cause weighing results unpunctual, instrument system can not get any information, and cannot navigate in time, exactly fault occur orientation, so be not too applicable to robotization requirement high, can not stop production for a long time maintenance occasion.
A lot of user in use, encounter weighing data inaccurate maybe can not normally weigh situations such as (such as display display is underload or overload phenomenons) time, can require that technical service personnel keep in repair to scene, after technical service personnel to scene, case study, reason investigation is carried out according to phenomenon weighing system, artificially spends a lot of time the reason that searches problem and user can be caused to stop production for a long time, thus the company of giving and client bring about great losses.
Summary of the invention
For above-mentioned shortcoming of the prior art, the invention provides a kind of when not affecting nominal sensor connection function and do not change terminal box size and connection mode, possessing the sensor terminal box of multiple intelligent function.
According to an aspect of the present invention, provide a kind of sensor terminal box, comprising: sensor interface module, be coupled to outside multiple sensors by the wiring of each corresponding first sensor line; Data acquisition and analog-to-digital conversion module, be coupled to sensor interface module, gathers the initialize signal from each sensor, carries out analog to digital conversion and export gathered signal; Processing module, is coupled to the output terminal of analog-to-digital conversion module, receives and processes through analog-to-digital signal to monitor the state of each sensor in real time, and exports the signal of the state of each sensor of instruction; And communication module, be coupled to the output terminal of processing module, receive the signal of the state of each sensor of instruction and export.
According to another aspect of the invention, data acquisition and analog-to-digital conversion module comprise: data acquisition module, are coupled to described sensor interface module, gather the initialize signal from each sensor and export; And analog-to-digital conversion module, be coupled to the output terminal of described data acquisition module, analog to digital conversion carried out to gathered signal and exports.
According to another aspect of the invention, the state that processing module monitors each sensor in real time comprises: carry out detecting contrast with the duty judging each corresponding first sensor line to the voltage of signal and current value.
According to another aspect of the invention, when the duty of each corresponding first sensor line is normal, automatically adjust angular difference.
According to another aspect of the invention, the sensitivity of processing module to each corresponding sensor is averaged, and the digital potentiometer in the correcting circuit comprised in designation data acquisition module adjustment sensor terminal box adjusts angular difference automatically.In a specific embodiment, the correcting circuit comprised in processing module designation data acquisition module passes through I
2digital potentiometer in C bus adjustment sensor terminal box adjusts angular difference automatically.
According to another aspect of the invention, when the duty of each corresponding first sensor line be short circuit, open circuit or impedance variation time, processing module indicates an external meters to realize warning function by communication module.
According to another aspect of the invention, communication module by transformer or electric capacity, be coupled to an external meters via the second pickup wire, and with a communications protocol and external meters mutual.
According to another aspect of the invention, the state of each sensor can also be sent to external meters by communication module.
According to another aspect of the invention, communication module can also be received from the order of external meters transmission to require that processing module reads the diagnostic message of each sensor, and read diagnostic message is beamed back external meters.
According to another aspect of the invention, communications protocol is following any one: RS232, RE422/485, CAN, LIN.
Should be appreciated that more than the present invention generality describe and the following detailed description be all exemplary and explanat, and be intended to for as claimed in claim the invention provides further explanation.
Accompanying drawing explanation
Comprising accompanying drawing is further understand the present invention for providing, and they are included and form a application's part, and accompanying drawing shows embodiments of the invention, and plays the effect explaining the principle of the invention together with this instructions.In accompanying drawing:
Fig. 1 is the theory diagram of sensor terminal box according to a first embodiment of the present invention.
Fig. 2 is the theory diagram of the data acquisition module in sensor terminal box according to a first embodiment of the present invention.
Fig. 3 is the theory diagram of sensor terminal box according to a second embodiment of the present invention.
Embodiment
With detailed reference to accompanying drawing, embodiments of the invention are described now.
Fig. 1 is the theory diagram of sensor terminal box according to a first embodiment of the present invention.As shown in Figure 1, sensor terminal box 100 comprises: sensor interface module 110, data acquisition module 120, analog-to-digital conversion module 130, processing module 140 and communication module 150.Sensor interface module 110 is coupled to outside multiple sensors by the wiring of each corresponding first sensor line 102.Data acquisition module 120 is coupled to sensor interface module 110, gathers the initialize signal from each sensor and exports.Analog-to-digital conversion module 130 is coupled to the output terminal of data acquisition module 120, carries out analog to digital conversion and export gathered signal.Processing module 140 is coupled to the output terminal of analog-to-digital conversion module 130, receives and processes through analog-to-digital signal to monitor the state of each sensor in real time, and exports the signal of the state of each sensor of instruction.Communication module 150 is coupled to the output terminal of processing module 140, receives the signal of the state of each sensor of instruction and exports.
In one embodiment, the state that processing module 140 monitors each sensor in real time comprises: carry out detecting contrast with the duty judging each corresponding first sensor line 102 to the voltage of signal and current value.In a specific embodiment, processing module of the present invention adopts IPC2103 chip, and it is integrated with 16/32 bit CPU of ARM7TDMI-S.
In one embodiment, when the duty of each corresponding first sensor line 102 is normal, automatically angular difference can be adjusted.
Fig. 2 is the theory diagram of the data acquisition module in sensor terminal box according to a first embodiment of the present invention.As shown in Figure 2, correcting circuit 122 is comprised in data acquisition module 120.In a specific embodiment, the sensitivity of processing module 140 to each corresponding sensor is averaged, and the digital potentiometer in the correcting circuit comprised in designation data acquisition module 120 adjustment sensor terminal box adjusts angular difference automatically.Pass through I
2c bus.
In one embodiment, when the duty of each corresponding first sensor line 102 be short circuit, open circuit or impedance variation time, processing module 140 indicates an external meters to realize warning function by communication module 150.
In one embodiment, communication module 150 by transformer or electric capacity, be coupled to an external meters via the second pickup wire 162, and with a communications protocol and external meters mutual.
In one embodiment, the state of each sensor can also be sent to external meters by communication module 150.
In one embodiment, communication module 150 can also be received from the order of external meters transmission to require that processing module 140 reads the diagnostic message of each sensor, and read diagnostic message is beamed back external meters.In a specific embodiment, order and send by external meters timed sending or in time of specifying.
In one embodiment, communications protocol is following any one: RS232, RE422/485, CAN, LIN.
Fig. 3 is the theory diagram of sensor terminal box according to a second embodiment of the present invention.Fig. 3 is the theory diagram of sensor terminal box according to a second embodiment of the present invention.Be with the difference of the sensor terminal box 100 shown in Fig. 1, in sensor terminal box 300 shown in Fig. 3, data acquisition function and analog-digital conversion function are realized by a module, specifically, are that data acquisition as shown in Figure 3 and analog-to-digital conversion module 320 realize.Other assemblies of sensor terminal box 300 shown in Fig. 3 are all identical with function with the assembly of the sensor terminal box 100 shown in Fig. 1 with function, do not repeat them here.
Sensor terminal box of the present invention can when do not affect normal connection function and not varying sized and connection mode, realize multiple intelligent function such as adjustment angular difference or warning etc. automatically.Sensor terminal box of the present invention can not need to open connector cover and manually adjust angular difference, and also not only save time not tamper protection performance.In addition, sensor terminal box of the present invention can the state of monitoring sensor in real time, facilitates user find fast and fix a breakdown, greatly shortens the repair time.
Those skilled in the art can be obvious, can carry out various modifications and variations and without departing from the spirit and scope of the present invention to above-mentioned exemplary embodiment of the present invention.Therefore, be intended to that the present invention is covered and drop within the scope of appended claims and equivalent arrangements thereof to amendment of the present invention and modification.
Claims (10)
1. a sensor terminal box, comprising:
Sensor interface module, is coupled to outside multiple sensors by the wiring of each corresponding first sensor line;
Data acquisition and analog-to-digital conversion module, be coupled to described sensor interface module, gathers the initialize signal from each sensor, carries out analog to digital conversion and export gathered signal;
Processing module, is coupled to the output terminal of described analog-to-digital conversion module, receives and processes through analog-to-digital signal to monitor the state of each sensor in real time, and exports the signal of the state of each sensor of instruction; And
Communication module, is coupled to the output terminal of described processing module, receives the signal of the state of each sensor of instruction and exports.
2. sensor terminal box as claimed in claim 1, it is characterized in that, described data acquisition and analog-to-digital conversion module comprise:
Data acquisition module, is coupled to described sensor interface module, gathers the initialize signal from each sensor and exports;
Analog-to-digital conversion module, is coupled to the output terminal of described data acquisition module, carries out analog to digital conversion and export gathered signal.
3. sensor terminal box as claimed in claim 1, it is characterized in that, the state that processing module monitors each sensor in real time comprises: carry out detecting contrast with the duty judging each corresponding first sensor line to the voltage of signal and current value.
4. sensor terminal box as claimed in claim 3, is characterized in that, when the duty of each corresponding first sensor line is normal, automatically adjust angular difference.
5. sensor terminal box as claimed in claim 4, it is characterized in that, the sensitivity of described processing module to each corresponding sensor is averaged, and the digital potentiometer indicating the correcting circuit comprised in described data acquisition module to adjust in described sensor terminal box adjusts angular difference automatically.
6. sensor terminal box as claimed in claim 3, is characterized in that, when the duty of each corresponding first sensor line be short circuit, open circuit or impedance variation time, described processing module indicates an external meters to realize warning function by described communication module.
7. sensor terminal box as claimed in claim 1, is characterized in that, described communication module by transformer or electric capacity, be coupled to an external meters via the second pickup wire, and with a communications protocol and described external meters mutual.
8. sensor terminal box as claimed in claim 7, it is characterized in that, the state of each sensor described is also sent to described external meters by described communication module.
9. sensor terminal box as claimed in claim 7, it is characterized in that, described communication module is also received from the order of described external meters transmission to require that described processing module reads the diagnostic message of each sensor, and read diagnostic message is beamed back described external meters.
10. sensor terminal box as claimed in claim 7, is characterized in that, described communications protocol is following any one: RS232, RE422/485, CAN, LIN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036346.7A CN104807528A (en) | 2014-01-24 | 2014-01-24 | Intelligent sensor junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036346.7A CN104807528A (en) | 2014-01-24 | 2014-01-24 | Intelligent sensor junction box |
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| CN104807528A true CN104807528A (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410036346.7A Pending CN104807528A (en) | 2014-01-24 | 2014-01-24 | Intelligent sensor junction box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144331A (en) * | 2017-05-27 | 2017-09-08 | 厦门亿克赛尔仪表科技有限公司 | A kind of small weighbridge instrument of New-type mould revolution |
| CN113358200A (en) * | 2021-04-07 | 2021-09-07 | 来学通软件科技（厦门）有限公司 | Digital sensor junction box and weighing system based on same |
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| CN202393484U (en) * | 2011-11-26 | 2012-08-22 | 济南金钟电子衡器股份有限公司 | Multi-channel simulated weighing channel |
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| JP2005527798A (en) * | 2002-03-18 | 2005-09-15 | メトラー−トレド・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Load measuring cell and measuring instrument used for measuring instrument |
| CN2872329Y (en) * | 2005-07-25 | 2007-02-21 | 梅特勒-托利多(常州)称重设备系统有限公司 | Loading-free marking meter |
| CN201081754Y (en) * | 2007-08-10 | 2008-07-02 | 山东西泰克仪器有限公司 | Electronic weighing signal splitting and switch processing device |
| CN101526391A (en) * | 2008-11-17 | 2009-09-09 | 珠海市长陆工业自动控制系统有限公司 | Digital hopper-balance checker |
| CN201413189Y (en) * | 2008-11-17 | 2010-02-24 | 珠海市长陆工业自动控制系统有限公司 | Digital type hopper scale checking apparatus |
| CN202393484U (en) * | 2011-11-26 | 2012-08-22 | 济南金钟电子衡器股份有限公司 | Multi-channel simulated weighing channel |
| CN202720471U (en) * | 2012-07-09 | 2013-02-06 | 宁波柯力传感科技股份有限公司 | Digital industrial control instrument system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107144331A (en) * | 2017-05-27 | 2017-09-08 | 厦门亿克赛尔仪表科技有限公司 | A kind of small weighbridge instrument of New-type mould revolution |
| CN113358200A (en) * | 2021-04-07 | 2021-09-07 | 来学通软件科技（厦门）有限公司 | Digital sensor junction box and weighing system based on same |
| CN113358200B (en) * | 2021-04-07 | 2022-05-03 | 来学通软件科技（厦门）有限公司 | Weighing system based on digital sensor junction box |
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Application publication date: 20150729 |