CN204374699U - A kind of network industrial signal pickup assembly - Google Patents

A kind of network industrial signal pickup assembly Download PDF

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Publication number
CN204374699U
CN204374699U CN201520057458.0U CN201520057458U CN204374699U CN 204374699 U CN204374699 U CN 204374699U CN 201520057458 U CN201520057458 U CN 201520057458U CN 204374699 U CN204374699 U CN 204374699U
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interface
passage
chip microcomputer
analog
plate
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CN201520057458.0U
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Chinese (zh)
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杨雷
张志坚
陈平平
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Dongguan University of Technology
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Dongguan University of Technology
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Abstract

A kind of network industrial signal pickup assembly, comprises collection plate, RS485 interface, ARM controller and network; Collection plate is connected with one end of RS485 interface, and the other end of RS485 interface connects ARM controller, the other end interconnection network of ARM controller; Described collection plate is 8 channel acquisition plates, comprise voltage acquisition plate, current acquisition plate, digital switch quantity input collection plate and digital switch quantity output board, collection plate is installed in cabinet, each cabinet arranges 4 pieces of collection plates, 4 pieces of collection plates are one or more the combination in voltage acquisition plate, current acquisition plate, digital switch quantity input collection plate and digital switch quantity output board, and harvester comprises at least 1 cabinet.The utility model connection Network Based, can realize distributed measurement; Gather multiple industrial signal simultaneously, a certain and certain two kinds of collection plate also can be only installed; Easy expansion acquisition channel number, increases cabinet network interface and just can expand acquisition channel quantity.

Description

A kind of network industrial signal pickup assembly
Technical field
The utility model relates to industrial Signal Collection Technology, particularly relates to a kind of network industrial signal pickup assembly.
Background technology
Industry signal refers to industrial conventional standard analog voltage signal, analog current signal, digital switch quantity signal etc.Many devices, in each link work of data recordation, almost entirely complete by hand, waste time and energy, easily make mistakes.Current industrial signal acquiring system, the shortcomings such as there is acquisition channel single, kind is single, and extendability is not strong.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of network industrial signal pickup assembly, realizes hyperchannel and multiple types collection, simple to operation.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of network industrial signal pickup assembly, comprises collection plate, RS485 interface, ARM controller and network; Collection plate is connected with one end of RS485 interface, and the other end of RS485 interface connects ARM controller, the other end interconnection network of ARM controller; Described collection plate is 8 channel acquisition plates, comprise voltage acquisition plate, current acquisition plate, digital switch quantity input collection plate and digital switch quantity output board, described collection plate is installed in cabinet, each cabinet arranges 4 pieces of collection plates, 4 pieces of collection plates are one or more the combination in voltage acquisition plate, current acquisition plate, digital switch quantity input collection plate and digital switch quantity output board, and described harvester comprises at least 1 cabinet.
Preferably, described voltage acquisition plate comprises industrial terminal, analog isolation circuit, 8 passage analog to digital conversion circuits, single-chip microcomputer and the RS485 interface composition be electrically connected to each other successively; The output terminal of industry terminal is connected with the input end of analog isolation circuit, the output terminal of analog isolation circuit is connected with the input end of 8 passage analog to digital conversion circuits, the output terminal of 8 passage analog to digital conversion circuits is connected with the input end of single-chip microcomputer, and single-chip microcomputer is connected with RS485 interface both-way communication.
Preferably, described current acquisition plate comprises industrial terminal, current-to-voltage converting circuit, analog isolation circuit, 8 passage analog to digital conversion circuits, single-chip microcomputer and the RS485 interface composition be electrically connected to each other successively; The industry output terminal of terminal is connected with the input end of current-to-voltage converting circuit, the output terminal of current-to-voltage converting circuit is connected with the input end of analog isolation circuit, the output terminal of analog isolation circuit is connected with the input end of 8 passage analog to digital conversion circuits, the output terminal of 8 passage analog to digital conversion circuits is connected with the input end of single-chip microcomputer, and single-chip microcomputer is connected with RS485 interface both-way communication.
Preferably, the analog isolation circuit in described voltage acquisition plate and current acquisition plate is made up of analog isolation chip I SO124.
Preferably, described digital switch quantity input collection plate comprises the industrial terminal, 8 passage numeral buffer circuit, single-chip microcomputer and the RS485 interface compositions that are electrically connected to each other successively; The output terminal of industry terminal is connected with the input end of 8 passage numeral buffer circuits, and the 8 passage numeral output terminals of buffer circuit are connected with the input end of single-chip microcomputer, and single-chip microcomputer is connected with RS485 interface both-way communication.
Preferably, 8 passage numeral buffer circuits in described digital switch quantity input collection plate are made up of TLP627 chip.
Preferably, described digital switch quantity output board comprises industrial terminal, 8 passage relay circuits, single-chip microcomputer and the RS485 interface composition be electrically connected to each other successively; Single-chip microcomputer is connected with RS485 interface both-way communication, and the output terminal of single-chip microcomputer is connected with the input end of 8 passage relay circuits, and the output terminal of 8 passage relay circuits is connected with industrial terminal.
Preferably, 8 passage relay circuits in described digital switch quantity output board are made up of relay G6D5 and relay driving chip ULN2803.
Compared with prior art, the beneficial effects of the utility model are: connection Network Based, can realize distributed measurement; Assemble type, each cabinet arranges 4 pieces of collection plates, 4 pieces of collection plates are one or more the combination in voltage acquisition plate, current acquisition plate, digital switch quantity input collection plate and digital switch quantity output board, gather multiple industrial signal simultaneously, a certain and certain two kinds of collection plate (as only installed 2 blocks of voltage acquisition plates and 2 blocks of current acquisition plates, realizing the voltage acquisition of 16 passages and the current acquisition of 16 passages) also can be only installed; Easy expansion acquisition channel number, if when set of system (in a cabinet 4 blocks of plates) is not enough, as long as the many cabinets of increase and a network interface just can expand acquisition channel quantity.
Accompanying drawing explanation
Fig. 1 is single unit system structure principle chart of the present utility model;
fig. 2 is the voltage acquisition plate structure schematic diagram of 8 passages of the present utility model;
Fig. 3 is the current acquisition plate structure schematic diagram of 8 passages of the present utility model;
Fig. 4 is the digital switch quantity input collection plate structure principle chart of 8 passages of the present utility model;
Fig. 5 is the digital switch quantity output board structure principle chart of 8 passages of the present utility model.
Embodiment
Purport of the present utility model is to overcome the deficiencies in the prior art, and provide a kind of network industrial signal pickup assembly, industrial signal refers to industrial conventional standard analog voltage signal, analog current signal, digital switch quantity signal etc.It is 0 ~ 5V, 0 ~ 10V, ± 5V, ± 10V that harvester gathers voltage signal scope; Gathering current signal scope is 4 ~ 20mA; Collection digital switch quantity inputs: low level is 0V, and high level is the digital signal of 3.3V or 5V; Collection digital switch quantity exports: relay dry contact exports (for external control), the shortcomings such as can effectively overcome acquisition channel single, kind is single, and extendability is not strong.Be described in detail, to be interpretated more in-depth technical characteristic of the present utility model and advantage with reference to accompanying drawing below in conjunction with embodiment.
As shown in Figure 1, a kind of network industrial signal pickup assembly, comprises collection plate, RS485 interface, ARM controller and network to schematic diagram of device of the present utility model; Collection plate is connected with one end of RS485 interface, and the other end of RS485 interface connects ARM controller, the other end interconnection network of ARM controller; Described collection plate is 8 channel acquisition plates, comprise voltage acquisition plate, current acquisition plate, digital switch quantity input collection plate and digital switch quantity output board, described collection plate is installed in cabinet, each cabinet arranges 4 pieces of collection plates, 4 pieces of collection plates are one or more the combination in voltage acquisition plate, current acquisition plate, digital switch quantity input collection plate and digital switch quantity output board, and described harvester comprises at least 1 cabinet.As shown in Figure 1, industrial signal pickup assembly of the present utility model, the structurized array mode of sampling moduleization, with a standard PC case for collecting unit, is made up of ARM controller, network interface, RS485 interface and 4 pieces of collection plates.4 blocks of plates can be any 4 pieces in 4 kinds of plates such as the digital switch quantity output board of the voltage acquisition plate of 8 passages, the current acquisition plate of 8 passages, the digital switch quantity input collection plate of 8 passages and 8 passages.
The major function of ARM controller uploads the function assigned, and read the industrial signal of each daughter board, in being uploaded onto the server, provide WEB service by network interface simultaneously by RS485 interface.ARM controller is primarily of STM32F103 and DM9000 chip composition, and STM32 is the ARM primary controller of 32, and DM9000 can provide the adaptive network of 10/100M to connect for network chip.Communicated by RS485 between ARM controller and 4 collection plates.
As shown in Figure 2, described voltage acquisition plate comprises industrial terminal, analog isolation circuit, 8 passage analog to digital conversion circuits, single-chip microcomputer and the RS485 interface composition be electrically connected to each other successively to the voltage acquisition plate structure schematic diagram of 8 passages of the present utility model; The output terminal of industry terminal is connected with the input end of analog isolation circuit, the output terminal of analog isolation circuit is connected with the input end of 8 passage analog to digital conversion circuits, the output terminal of 8 passage analog to digital conversion circuits is connected with the input end of single-chip microcomputer, and single-chip microcomputer is connected with RS485 interface both-way communication.
Industry terminal is external signal Interface Terminal, and the isolation that analog isolation main circuit will be used to realize simulating signal avoids outside collection signal to the interference of acquisition system and destruction, adopts analog isolation chip I SO124.8 passage analog to digital conversion circuits realize the analog-converted of multiple range voltage, have employed the modulus conversion chip MAX1270 of 12.Single-chip microcomputer adopts STC89C52, be responsible for reading acquisition from RS485 interface, and control MAX1270 carries out measurement range selection (0 ~ 5V, 0 ~ 10V, ± 5V and ± 4 ranges such as 10V) then the voltage signal collected is sent to ARM controller by RS485 interface.Voltage acquisition plate also comprises power-supply system and address code wire jumper part, and power-supply system is responsible for the Power convert of 24V as ± 15V and 5V voltage supplied collection plate is powered.Address code wire jumper realizes the geocoding identification between each plate, has 4, and front two is responsible for the type identifying plate, is responsible for identifying specific address for latter two.In system, each voltage acquisition plate will have independently geocoding.
As shown in Figure 3, described current acquisition plate comprises industrial terminal, current-to-voltage converting circuit, analog isolation circuit, 8 passage analog to digital conversion circuits, single-chip microcomputer and the RS485 interface composition be electrically connected to each other successively to the current acquisition plate structure schematic diagram of 8 passages of the present utility model; The industry output terminal of terminal is connected with the input end of current-to-voltage converting circuit, the output terminal of current-to-voltage converting circuit is connected with the input end of analog isolation circuit, the output terminal of analog isolation circuit is connected with the input end of 8 passage analog to digital conversion circuits, the output terminal of 8 passage analog to digital conversion circuits is connected with the input end of single-chip microcomputer, and single-chip microcomputer is connected with RS485 interface both-way communication.
Industry terminal is external signal Interface Terminal; Current-to-voltage converting circuit mainly realizes current signal and is converted to voltage signal, gathers the conversion that electric current that OP37 realizes 4 ~ 20mA turns 0 ~ 10V voltage; The isolation that analog isolation main circuit will be used to realize simulating signal avoids outside collection signal to the interference of acquisition system and destruction, adopts analog isolation chip I SO124; 8 passage analog to digital conversion circuits realize the analog-converted of multiple range voltage, adopt the modulus conversion chip MAX1270 of 12; Single-chip microcomputer adopts STC89C52, is responsible for reading acquisition from RS485 interface, and control MAX1270 carries out voltage acquisition, and is converted to the magnitude of current, then the current signal collected is sent to ARM controller by RS485 interface.Current acquisition plate also comprises power-supply system and address code wire jumper part, and power-supply system is responsible for the Power convert of 24V as ± 15V and 5V voltage supplied collection plate is powered.Address code wire jumper realizes the geocoding identification between each plate, has 4, and front two is responsible for the type identifying plate, is responsible for identifying specific address for latter two.In system, each current acquisition plate will have independently geocoding.
As shown in Figure 4, described digital switch quantity input collection plate comprises the industrial terminal, 8 passage numeral buffer circuit, single-chip microcomputer and the RS485 interface compositions that are electrically connected to each other successively to the digital switch quantity input collection plate structure principle chart of 8 passages of the present utility model; The output terminal of industry terminal is connected with the input end of 8 passage numeral buffer circuits, and the 8 passage numeral output terminals of buffer circuit are connected with the input end of single-chip microcomputer, and single-chip microcomputer is connected with RS485 interface both-way communication.
Industry terminal is external signal Interface Terminal; 8 passage numeral buffer circuits adopt TLP627, realize external digital signal and the inner Phototube Coupling gathering metering circuit; Single-chip microcomputer adopts STC89C52, is responsible for reading acquisition from RS485 interface, and reads the digital state signal of coming from buffer circuit, then the digital switch quantity signal collected is sent to ARM controller by RS485 interface; Digital switch quantity input collection plate also comprises power-supply system and address code wire jumper part, and power-supply system is responsible for the Power convert of 24V as ± 15V and 5V voltage supplied collection plate is powered.Address code wire jumper realizes the geocoding identification between each plate, has 4, and front two is responsible for the type identifying plate, is responsible for identifying specific address for latter two.In system, each plate will have independently geocoding.
As shown in Figure 5, described digital switch quantity output board comprises industrial terminal, 8 passage relay circuits, single-chip microcomputer and the RS485 interface composition be electrically connected to each other successively to the digital switch quantity output board structure principle chart of 8 passages of the present utility model; Single-chip microcomputer is connected with RS485 interface both-way communication, and the output terminal of single-chip microcomputer is connected with the input end of 8 passage relay circuits, and the output terminal of 8 passage relay circuits is connected with industrial terminal.
Industry terminal is external signal Interface Terminal; 8 passage relay circuits are made up of relay G6D5 and relay driving chip ULN2803, are responsible at the controller switches of single-chip microcomputer and closed 8 nodes; Single-chip microcomputer adopts STC89C52, is responsible for reading acquisition from RS485 interface, and according to the disconnection of order control No. 8 relay or closed; Digital switch quantity output board also comprises power-supply system and address code wire jumper part, and power-supply system is responsible for the Power convert of 24V as ± 15V and 5V voltage supplied collection plate is powered.Address code wire jumper realizes the geocoding identification between each plate, has 4, and front two is responsible for the type identifying plate.
Carry out clear, complete description by the technical scheme in above embodiment to the utility model, obviously described embodiment is the embodiment of the utility model part, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Claims (10)

1. a network industrial signal pickup assembly, is characterized in that: comprise collection plate, RS485 interface, ARM controller and network; Collection plate is connected with one end of RS485 interface, and the other end of RS485 interface connects ARM controller, the other end interconnection network of ARM controller; Described collection plate is 8 channel acquisition plates, comprise voltage acquisition plate, current acquisition plate, digital switch quantity input collection plate and digital switch quantity output board, described collection plate is installed in cabinet, each cabinet arranges 4 pieces of collection plates, 4 pieces of collection plates are one or more the combination in voltage acquisition plate, current acquisition plate, digital switch quantity input collection plate and digital switch quantity output board, and described harvester comprises at least 1 cabinet.
2. network industrial signal pickup assembly according to claim 1, is characterized in that: described voltage acquisition plate comprises industrial terminal, analog isolation circuit, 8 passage analog to digital conversion circuits, single-chip microcomputer and the RS485 interface composition be electrically connected to each other successively; The output terminal of industry terminal is connected with the input end of analog isolation circuit, the output terminal of analog isolation circuit is connected with the input end of 8 passage analog to digital conversion circuits, the output terminal of 8 passage analog to digital conversion circuits is connected with the input end of single-chip microcomputer, and single-chip microcomputer is connected with RS485 interface both-way communication.
3. network industrial signal pickup assembly according to claim 1, is characterized in that: described current acquisition plate comprises industrial terminal, current-to-voltage converting circuit, analog isolation circuit, 8 passage analog to digital conversion circuits, single-chip microcomputer and the RS485 interface composition be electrically connected to each other successively; The industry output terminal of terminal is connected with the input end of current-to-voltage converting circuit, the output terminal of current-to-voltage converting circuit is connected with the input end of analog isolation circuit, the output terminal of analog isolation circuit is connected with the input end of 8 passage analog to digital conversion circuits, the output terminal of 8 passage analog to digital conversion circuits is connected with the input end of single-chip microcomputer, and single-chip microcomputer is connected with RS485 interface both-way communication.
4. network industrial signal pickup assembly according to claim 1, is characterized in that: described digital switch quantity input collection plate comprises the industrial terminal, 8 passage numeral buffer circuit, single-chip microcomputer and the RS485 interface compositions that are electrically connected to each other successively; The output terminal of industry terminal is connected with the input end of 8 passage numeral buffer circuits, and the 8 passage numeral output terminals of buffer circuit are connected with the input end of single-chip microcomputer, and single-chip microcomputer is connected with RS485 interface both-way communication.
5. network industrial signal pickup assembly according to claim 1, is characterized in that: described digital switch quantity output board comprises industrial terminal, 8 passage relay circuits, single-chip microcomputer and the RS485 interface composition be electrically connected to each other successively; Single-chip microcomputer is connected with RS485 interface both-way communication, and the output terminal of single-chip microcomputer is connected with the input end of 8 passage relay circuits, and the output terminal of 8 passage relay circuits is connected with industrial terminal.
6. the network industrial signal pickup assembly according to Claims 2 or 3, is characterized in that: described analog isolation circuit is made up of analog isolation chip I SO124.
7. the network industrial signal pickup assembly according to Claims 2 or 3, is characterized in that: described 8 passage analog to digital conversion circuits are made up of the modulus conversion chip MAX1270 of 12.
8. the network industrial signal pickup assembly according to any one of claim 2-5, is characterized in that: described single-chip microcomputer is made up of STC89C52 chip.
9. network industrial signal pickup assembly according to claim 4, is characterized in that: described 8 passage numeral buffer circuits are made up of TLP627 chip.
10. network industrial signal pickup assembly according to claim 5, is characterized in that: described 8 passage relay circuits are made up of relay G6D5 and relay driving chip ULN2803.
CN201520057458.0U 2015-01-28 2015-01-28 A kind of network industrial signal pickup assembly Expired - Fee Related CN204374699U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106681185A (en) * 2016-11-24 2017-05-17 河钢股份有限公司承德分公司 Data acquisition and access device
CN108572331A (en) * 2017-08-08 2018-09-25 常州星宇车灯股份有限公司 A kind of portable multi-channel car light on-line detecting system
CN111856278A (en) * 2020-08-05 2020-10-30 贵州电网有限责任公司 Multichannel multi-range frequency response test signal acquisition device and acquisition method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106681185A (en) * 2016-11-24 2017-05-17 河钢股份有限公司承德分公司 Data acquisition and access device
CN108572331A (en) * 2017-08-08 2018-09-25 常州星宇车灯股份有限公司 A kind of portable multi-channel car light on-line detecting system
CN111856278A (en) * 2020-08-05 2020-10-30 贵州电网有限责任公司 Multichannel multi-range frequency response test signal acquisition device and acquisition method

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