CN201765049U - Multi-channel weighing module - Google Patents
Multi-channel weighing module Download PDFInfo
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- CN201765049U CN201765049U CN2010205158269U CN201020515826U CN201765049U CN 201765049 U CN201765049 U CN 201765049U CN 2010205158269 U CN2010205158269 U CN 2010205158269U CN 201020515826 U CN201020515826 U CN 201020515826U CN 201765049 U CN201765049 U CN 201765049U
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Abstract
The utility model discloses a multi-channel weighing module, which comprises a sensor interface unit used for connecting with the sensor interface of an external weighing sensor to perform multi-channel data acquisition; a power supply unit in electric connection with the interface unit of the sensor to supply power to the interface unit of the sensor. The multi-channel weighing module of the utility model achieves a high precision, meets the real-time demand of data acquisition, and reduces the use cost of the system.
Description
Technical field
The utility model relates to a kind of hyperchannel Weighing module, belongs to industrial weighing control system field.
Background technology
At present, in industrial weighing control system field, weighing instrument has had significant progress, and it comprises LOAD CELLS interface and the filter amplifier that is connected successively, A/D converter, microcomputer, to finish the collection of weight; And the data acquisition port of existing hyperchannel Weighing module is 8 passages even 16 access ports.But owing to be subjected to size restrictions, existing hyperchannel Weighing module does not generally contain the sensor power supply on the market, needs external, the ratio of precision of general external power supply is lower, temperature is floated bigger, cause the precision of whole sampling module generally not high, and temperature is floated also bigger.Simultaneously, the hyperchannel amplifying unit that existing hyperchannel Weighing module is general also needs external, has so also improved the cost of system applies.In addition, because existing hyperchannel Weighing module 12 bit A/D converters that adopt, conversion accuracy is not high more; Even adopt high-precision AD converter, also can only accomplish 16, nonetheless, the speed of sampling is not high yet, generally in 100 times/second.Can not satisfy the requirement of present sampling real-time.
Summary of the invention
Therefore, the utility model provides a kind of sampling precision high hyperchannel Weighing module at the low defective of present sampling precision, satisfies real time of data acquisition, reduces the use cost of system.
The technical solution adopted in the utility model is:
The utility model hyperchannel Weighing module comprises:
Sensor interface unit is used to connect the sensor interface of outside LOAD CELLS, to carry out the collection of multi-channel data;
Power supply unit is electrically connected on described sensor interface unit, to power to this sensor interface unit.
Hyperchannel Weighing module according to technical solutions of the utility model is integrated in this device interior to power supply unit, power supply unit to the sensor interface unit power supply especially is provided, thereby, power source performance is little with exterior temperature change, the output dynamic stability is good, the output accuracy that guarantees power supply is relatively stable, and temperature is floated smaller.And then, satisfy the basic demand of this equipment sampling precision.And temperature is floated little, and sample rate is fast, can not produce additional time-delay, and real time of data acquisition strengthens, and has reduced the cost of entire system operation.
Above-mentioned hyperchannel Weighing module, also comprise the multi-channel filter magnification processing that connects successively with described sensor interface unit, the A/D converting unit and the central processing unit of 24 sampling precisions of hyperchannel, and be connected in the storage unit of this central processing unit with storage controlling queue program and data.
Above-mentioned hyperchannel Weighing module also comprises with described central processing unit linking to each other, to carry out the keyboard display unit of man-machine interaction.
Above-mentioned hyperchannel Weighing module also comprises first communication unit that is used for local communication that links to each other with described central processing unit and second communication unit that is used for telecommunication.
Above-mentioned hyperchannel Weighing module, described first communication module comprise serial line interface and configuration level conversion unit.
Above-mentioned hyperchannel Weighing module, described first communication unit is the serial interface unit that comprises RS232.
Above-mentioned hyperchannel Weighing module, described second communication module comprises the level conversion unit of field-bus interface and configuration.
Above-mentioned hyperchannel Weighing module, described second communication unit are the field-bus interface unit that comprises CAN Bus _ BUS.
Description of drawings
Below in conjunction with Figure of description the technical solution of the utility model is further described, makes those skilled in the art better understand the utility model, wherein:
Among the figure: 1, sensor interface unit, 2, the filter amplifying processing unit, 3, the A/D converting unit, 4, central processing unit, 5, storage unit, 6, keyboard display unit, 7, first communication unit, 8, second communication unit, 9, power supply unit.
Embodiment
With reference to explanation accompanying drawing 1, it shows a kind of hyperchannel Weighing module, comprising:
For described hyperchannel Weighing module, also comprise the multi-channel filter magnification processing 2 that connects successively with described sensor interface unit 1, the A/D converting unit 3 and the central processing unit 4 of 24 sampling precisions of hyperchannel, and be connected in this central processing unit to store the storage unit 5 of controlling queue program and data, wherein central processing unit is handled the data after the processing of A/D converting unit as the core processing element of system according to the mode that presets.Wherein storage unit then is to be used for the data after the stores processor and the program of controlling queue, certainly, also can store raw data, is provided with according to relevant needs.
This module also comprises and linking to each other with described central processing unit 4 carrying out the keyboard display unit of man-machine interaction, being used to the setting of parameter of weighing, and shows according to the information of setting needs reality.Power supply unit 9 is electrically connected on described sensor interface unit 1, to power to this sensor interface unit.
For the needs of device systems function and equipment debugging, also comprise two communication units that link to each other with described central processing unit 4.
So preferably, described communication unit comprises:
First communication unit is used for local communication, is mainly used to the debugging of equipment, the uploading, download of program formation, and the data download etc.;
Second communication unit is used for telecommunication, is mainly used in networking, realizes sharing of data.
Preferably; because this generic module volume of transmitted data is not very big; therefore; described first communication unit comprises serial line interface and level conversion unit; simple in structure, cost is low, can satisfy the needs of actual use fully; level conversion unit plays the level that protection provides matched interfaces simultaneously, and docking port forms protection.Serial line interface can be selected universal serial port, also can adopt the interface such as RS485, and preferably, described serial line interface is the RS232 interface.
Arrange net for ease of the system integration with by fieldbus, described second communication unit comprises the level conversion unit of field-bus interface and configuration.
Preferably, described field-bus interface is the CAN_BUS interface, and speed is fast, and is compatible good, and long transmission distance.
Claims (9)
1. hyperchannel Weighing module comprises:
Sensor interface unit (1) is used to connect the sensor interface of outside LOAD CELLS, to carry out the collection of multi-channel data;
It is characterized in that it also comprises:
Power supply unit (9) is electrically connected on described sensor interface unit (1), to power to this sensor interface unit.
2. hyperchannel Weighing module according to claim 1, it is characterized in that: described hyperchannel Weighing module also comprises the multi-channel filter magnification processing (2) that connects successively with described sensor interface unit (1), the A/D converting unit (3) and the central processing unit (4) of 24 sampling precisions of hyperchannel, and is connected in the storage unit (5) of this central processing unit with storage controlling queue program and data.
3. hyperchannel Weighing module according to claim 1 is characterized in that: also comprise with described central processing unit (4) linking to each other to carry out the keyboard display unit of man-machine interaction.
4. hyperchannel Weighing module according to claim 1 is characterized in that: also comprise the communication unit that links to each other with described central processing unit (4).
5. hyperchannel Weighing module according to claim 4 is characterized in that: described communication unit comprises:
First communication unit is used for local communication;
Second communication unit is used for telecommunication.
6. hyperchannel Weighing module according to claim 5 is characterized in that: described first communication module comprises serial line interface and configuration level conversion unit.
7. hyperchannel Weighing module according to claim 6 is characterized in that: described serial line interface is the RS232 interface.
8. hyperchannel Weighing module according to claim 5 is characterized in that: described second communication module comprises the level conversion unit of field-bus interface and configuration.
9. hyperchannel Weighing module according to claim 8 is characterized in that: described field-bus interface is the CAN_BUS interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205158269U CN201765049U (en) | 2010-09-03 | 2010-09-03 | Multi-channel weighing module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205158269U CN201765049U (en) | 2010-09-03 | 2010-09-03 | Multi-channel weighing module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201765049U true CN201765049U (en) | 2011-03-16 |
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ID=43717658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205158269U Expired - Fee Related CN201765049U (en) | 2010-09-03 | 2010-09-03 | Multi-channel weighing module |
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| CN (1) | CN201765049U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645264A (en) * | 2012-04-16 | 2012-08-22 | 宁波朗科精工技术有限公司 | Weighing sensor based on CAN (Controller Area Network) bus |
| CN102914352A (en) * | 2012-10-16 | 2013-02-06 | 深圳市卓禾仪器有限公司 | Electronic weighing instrument with programmable control function |
| CN108332831A (en) * | 2017-11-27 | 2018-07-27 | 西安航天三沃机电设备有限责任公司 | Multichannel weighing system data fusion method |
| CN109686074A (en) * | 2019-02-27 | 2019-04-26 | 深圳市斯迈耐特科技有限公司 | Eight channel dynamometry collectors |
-
2010
- 2010-09-03 CN CN2010205158269U patent/CN201765049U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645264A (en) * | 2012-04-16 | 2012-08-22 | 宁波朗科精工技术有限公司 | Weighing sensor based on CAN (Controller Area Network) bus |
| CN102914352A (en) * | 2012-10-16 | 2013-02-06 | 深圳市卓禾仪器有限公司 | Electronic weighing instrument with programmable control function |
| CN108332831A (en) * | 2017-11-27 | 2018-07-27 | 西安航天三沃机电设备有限责任公司 | Multichannel weighing system data fusion method |
| CN109686074A (en) * | 2019-02-27 | 2019-04-26 | 深圳市斯迈耐特科技有限公司 | Eight channel dynamometry collectors |
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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: 20110316 Termination date: 20130903 |