CN212341709U

CN212341709U - Be used for acquireing futilely wet contact signal acquisition transmission device

Info

Publication number: CN212341709U
Application number: CN202021261959.8U
Authority: CN
Inventors: 戴波
Original assignee: Wuhan Jin'an Shida Information Technology Co ltd
Current assignee: Wuhan Jin'an Shida Information Technology Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-01-12
Anticipated expiration: 2030-06-28

Abstract

A signal acquisition and transmission device for acquiring dry and wet contacts comprises a power supply module, a multi-way switching value input module, a central processing unit (MCU), a network module and multiple signal transmission modules, wherein the network module comprises an Ethernet PHY (physical layer) and a network interface, the signal input interface, a dry and wet contact switching unit, an isolation signal isolation unit, a signal filtering unit and the MCU are sequentially and electrically connected, the dry and wet contact switching unit is connected with the MCU, the network interface, the Ethernet PHY and the MCU are sequentially and electrically connected, a WIFI (wireless fidelity) module is connected with the MCU, an RS232 interface, an RS232 conversion unit and the MCU are sequentially and electrically connected, an RS485 interface, an RS485 conversion unit and the MCU are sequentially and electrically connected, the power supply module is the multi-way switching value input module, the MCU, the network module; different switching value input signals can be accessed, the dry contact and the wet contact are compatible, the wireless function is integrated, and the wiring installation can be avoided; and a plurality of communication modes are integrated, so that the method can adapt to different transmission environments.

Description

Be used for acquireing futilely wet contact signal acquisition transmission device

Technical Field

The utility model relates to a signal acquisition and communication technology field especially relate to a be used for acquireing dry and wet contact signal acquisition transmission device.

Background

Vehicle response equipment has gone deep into the aspect of life, the vehicle goes out and can not leave vehicle response equipment, the collection transmission market of present vehicle response is various, there is dry contact, there is wet some etc. if use under the condition of not understanding its difference and can bring very big inconvenience for us, moreover a lot of restrictive conditions exist at present, for example need to lay wire in advance at the beginning of the construction, like this many old and useless sites do not reserve sufficient signal line, need reform transform again in order to lay a line, waste manpower like this, material resources. And no real-time vehicle induction wireless transmission equipment is available in the market to meet the requirement. Meanwhile, a plurality of different sensing devices on the market have dry and wet contacts, and the acquisition device is generally matched with a single signal, so that a lot of troubles are brought to installation and debugging, and therefore, the technical problem of how to integrate the acquisition and transmission of signals of a plurality of vehicle sensing devices is needed to be solved at the present stage.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a be used for acquireing futilely wet contact signal acquisition transmission device has solved the problem of present incompatible dry contact and wet contact and has exempted from wiring, compatible multiple signal transmission's problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a be used for acquireing futilely wet contact signal acquisition transmission device, includes power module, multiple switching value input module, be used for data processing's central processing unit MCU, network module, WIFI module, RS232 module and RS485 module, switching value input module include signal input interface, be used for doing wet contact switching unit, isolation signal isolation unit and signal filtering unit that dry contact and wet contact switched, the network module includes ethernet PHY and network interface, the RS232 module includes RS232 converting unit and RS232 interface, the RS485 module includes RS485 converting unit and RS485 interface, signal input interface, be used for doing wet contact switching unit, isolation signal isolation unit and signal filtering unit and MCU electricity connection in proper order that dry contact and wet contact switched, dry contact switching unit link to each other with MCU, network interface, Ethernet PHY and MCU electricity in proper order are connected, the WIFI module link to each other with MCU, RS232 interface, RS232 converting unit and MCU electricity in proper order are connected, RS485 interface, RS485 converting unit and MCU electricity in proper order are connected, and power module is multi-way switching value input module, MCU, network module, and RS232 and RS485 are connected.

The voltage connected to the switching value signal input interface is direct current and cannot exceed 24V.

Specifically, the utility model discloses well dry wet contact switching unit links to each other with MCU, by MCU auto-change over device's input type. And the dry and wet contact switching unit can return the currently configured input type to the MCU to provide information for the output signal.

Specifically, the utility model discloses well switching value signal input interface's quantity is 1 to 4 ways.

Specifically, the utility model discloses in central processing unit MCU that is used for data processing need take MAC managerial function, and has 3 at least UART functions, the WIFI module need contain 1 way UART function and link to each other with MCU, and the frequency is 2.4 GHz.

Specifically, the utility model discloses well multiple switch volume input module contains resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, P channel MOS pipe Q1, optical coupler U1, MOS pipe Q1's source is anodal with power and resistance R1 links to each other, MOS pipe Q1's grid links to each other with MCU with the other end of resistance R1, optical portion positive pole and the resistance R3 of optical coupler Q1 link to each other, resistance R3 links to each other with resistance R2 and resistance R4, the partial positive pole of break-make of optical coupler Q1 links to each other with R6 and MCU, the negative pole is connected with the power negative pole.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. different switching value input signals can be accessed, and the dry contact and the wet contact are compatible;

2. the wireless function is integrated, the wiring installation can be avoided, and signals are transmitted through WIFI.

3. The communication modes such as network ports, RS232, RS485 and the like are integrated, and the device can adapt to different transmission environments.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of a signal acquisition and transmission device for acquiring a dry contact and a wet contact;

fig. 2 is a connection diagram of the switching value signal acquisition box.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The present invention will be further described with reference to the accompanying drawings.

As shown in FIG. 1, the device for acquiring the signal acquisition and transmission of the dry and wet contact comprises a power module, a multi-way switching value input module, a central processing unit MCU for data processing, a network module, a WIFI module, an RS232 module and an RS485 module, wherein the switching value input module comprises a signal input interface, a dry and wet contact switching unit for switching the dry contact and the wet contact, an isolation signal isolation unit and a signal filtering unit, the network module comprises an Ethernet PHY and a network interface, the RS232 module comprises an RS232 conversion unit and an RS232 interface, the RS485 module comprises an RS485 conversion unit and an RS485 interface, the signal input interface, the dry and wet contact switching unit for switching the dry contact and the wet contact, the isolation signal isolation unit and the signal filtering unit are electrically connected with the MCU in sequence, the dry and wet contact switching unit is connected with the MCU, the network interface, the Ethernet PHY and the MCU are sequentially and electrically connected, the WIFI module is connected with the MCU, the RS232 interface, the RS232 conversion unit and the MCU are sequentially and electrically connected, the RS485 interface, the RS485 conversion unit and the MCU are sequentially and electrically connected, the power supply module is a multi-path switching value input module, the MCU and the network module, and the RS232 and the RS485 are connected.

The voltage connected to the switching value signal input interface is direct current and can not exceed 24V.

The dry and wet contact switching unit is connected with the MCU, and the input type of the device is switched by the MCU. And the dry and wet contact switching unit can return the currently configured input type to the MCU to provide information for the output signal.

The utility model discloses well switching value signal input interface's quantity is 1 to 4 ways.

The central processing unit MCU needs to have an MAC management function and at least 3 UART functions, and the WIFI module needs to comprise 1 UART function and be connected with the MCU, and the frequency is 2.4 GHz.

As shown in fig. 2, the switching value input module includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a P-channel MOS transistor Q1, an optical coupler U1, a source of the MOS transistor Q1 is connected to a positive electrode of a power supply and a resistor R1, a gate of the MOS transistor Q1 is connected to the other end of the resistor R1 and the MCU, a positive electrode of an optical portion of the optical coupler Q1 is connected to the resistor R3, a resistor R3 is connected to the resistor R2 and the resistor R4, a positive electrode of an on-off portion of the optical coupler Q1 is connected to the R6 and the MCU, and a negative electrode of the.

The utility model discloses well MCU switches on through control MOS pipe Q1 from switching over the dry contact that wets. When Q1 switches on, for the access of doing the contact provides voltage, the partial pressure through R2 and R3 makes opto-coupler U1 switch on, makes the ground of SW _ MCU _0 line and power that links to each other with MCU switch on, and MCU acquires the signal that does the contact and passes through WIFI, net gape, RS232 and RS485 send signal. When MCU control MOS pipe Q1 makes its disconnection, make the power supply circuit of circuit disconnection system, for the access of wet contact, after voltage messenger opto-coupler channel on the wet contact, make SW _ MCU _0 line that links to each other with MCU and the ground of power switch on, MCU acquires that the signal of doing the contact passes through WIFI, net gape, RS232 and RS485 send signal. Thereby realizing the functions of the utility model.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a be used for acquireing wet contact signal acquisition transmission device which characterized in that: the device comprises a power supply module, a multi-path switching value input module, a central processing unit MCU, a network module, a WIFI module, an RS232 module and an RS485 module; the multi-path switching value input module comprises a signal input interface, a dry and wet contact switching unit, an isolation signal isolation unit and a signal filtering unit; the network module comprises an Ethernet PHY and a network interface; the RS232 module comprises an RS232 conversion unit and an RS232 interface; the RS485 module comprises an RS485 conversion unit and an RS485 interface;

the signal input interface, the dry and wet contact switching unit, the isolation signal isolation unit, the signal filtering unit and the central processing unit MCU are electrically connected in sequence;

the dry and wet contact switching unit is connected with the central processing unit MCU;

the network interface, the Ethernet PHY and the central processing unit MCU are electrically connected in sequence;

the WIFI module is connected with the central processing unit MCU;

the RS232 interface, the RS232 conversion unit and the central processing unit MCU are electrically connected in sequence;

the RS485 interface, the RS485 conversion unit and the MCU are electrically connected in sequence;

and the power supply module is connected with the multi-path switching value input module, the central processing unit MCU, the network module, the RS232 module and the RS485 module.

2. The acquisition and transmission device for acquiring signals of dry and wet contacts according to claim 1, characterized in that: the voltage connected to the switching value signal input interface is direct current voltage, and the value of the direct current voltage is not more than 24V.

3. The acquisition and transmission device for acquiring signals of dry and wet contacts according to claim 1, characterized in that: the central processing unit MCU controls the input type of the dry and wet contact switching unit; and the dry and wet contact switching unit returns the currently configured input type to the MCU.

4. The acquisition and transmission device for acquiring signals of dry and wet contacts according to claim 1, characterized in that: the number of the input interfaces of the multi-way switching value input module is 1-4.

5. The acquisition and transmission device for acquiring signals of dry and wet contacts according to claim 1, characterized in that: the central processing unit MCU has MAC management function and has more than 3 UART functions.

6. The acquisition and transmission device for acquiring signals of dry and wet contacts according to claim 1, characterized in that: the WIFI module contain 1 way UART function, and the frequency is 2.4 GHz.

7. The acquisition and transmission device for acquiring signals of dry and wet contacts according to claim 1, characterized in that: the multi-way switching value input module comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a P-channel MOS (metal oxide semiconductor) transistor Q1 and an optical coupler U1; the source electrode of the MOS transistor Q1 is connected with the positive electrode of the power supply and the resistor R1, and the grid electrode of the MOS transistor Q1 is connected with the other end of the resistor R1 and the MCU; the positive electrode of the light part of the optocoupler Q1 is connected with a resistor R3; the resistor R3 is connected with the resistor R2 and the resistor R4; the positive electrode of the on-off part of the optocoupler Q1 is connected with the R6 and the MCU, and the negative electrode of the optocoupler is connected with the negative electrode of the power supply.