Relay array control device and method

A relay array and control device technology, applied in electric pulse generator circuits, electrical components, generating electric pulses, etc., can solve the problems of poor scalability, inflexible relay control, and high IO resource occupation of controllers, so as to reduce IO resources occupancy, improve port multiplexing efficiency, and improve scalability

Active Publication Date: 2020-05-12
SHAANXI ELECTRICAL APPLIANCE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can reduce the IO resource requirements of the controller to a certain extent, the control device can only control a specific node in the array, and cannot make the states of multiple nodes meet the controlled requirements at the same time. The application of this device is limited. big
[0004] In summary, the existing technology mainly has shortcomings such as high IO resource occupation of the controller, poor scalability, and insufficient flexibility of relay control.

Method used

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  • Relay array control device and method
  • Relay array control device and method
  • Relay array control device and method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0051] This embodiment takes a relay array with an array size of 1800 relays as an example to describe a relay array control device and method proposed by the present invention. The specific content is as follows:

[0052] In this embodiment, the controller 1 selects the single-chip microcomputer C8051F040, which has 64 IO resources, and the on-chip RAM is 4Kbyte. In the device, the single-chip microcomputer realizes the recording of the state of the D flip-flop 3 and the data bus 2 and the group control line 6 , the output of the board control line 7 level.

[0053] Data bus 2 occupies 8 pins of the controller, which is 8-bit parallel data, and connects the IO pins of the controller and the data input pins of all D flip-flops.

[0054] The model of D flip-flop 3 is SN74H377, which is realized by the enable terminal EN (connected to the board control line 7), the clock terminal CLK (connected to the group control terminal 6) and the data input port D (connected to the data bus...

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Abstract

The invention discloses a relay array control device and method. A unit control end serial number, a group control end serial number and a relay serial number of a controller are used for numbering Dtriggers and relays; a D trigger is used as a control holding device; accurate control on the relay is realized; the port multiplexing efficiency of the controller is improved, the occupation of IO resources of the controller, the device cost and the wiring difficulty are reduced, the expandability of the control device is improved, a group of relays are added, the expansion of the device can be easily realized by only adding one board control line, and the control flexibility of the relays is improved at the same time.

Description

technical field [0001] The invention belongs to the technical field of relay control, and in particular relates to a relay array control device and method. Background technique [0002] In the field of cable testing, the cable tester can be used to efficiently test the characteristics of large cable bundles such as on-resistance, insulation, and withstand voltage. The main principle of the cable tester is to connect a specific cable or cable group into a specific test circuit by controlling the on-off of the relay, so as to test the characteristics of the cable. The number of relays determines the number of cable bundles that can be tested by the cable tester, so the scale of the relay array in a large cable tester is correspondingly huge. Huge relay arrays have high requirements for relay control devices. [0003] The traditional relay control mode is to drive the driver through the IO port of the controller to realize the closing and opening of the relay, and the IO port...

Claims

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Application Information

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IPC IPC(8): H03K3/012H03K3/02
CPCH03K3/012H03K3/02
Inventor 马国轩邓勇生李建江吴阳李敏罗晨曦
Owner SHAANXI ELECTRICAL APPLIANCE RES INST
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