CN113867200A

CN113867200A - Direction recognition module

Info

Publication number: CN113867200A
Application number: CN202111104809.5A
Authority: CN
Inventors: 周明祥; 邹学坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2021-12-31

Abstract

The invention relates to the technical field of direction identification, and discloses a direction identification module which comprises a first detection switch, a second detection switch, a first relay and a second relay, wherein the second detection switch is arranged in parallel with the first detection switch; the second relay is controlled by the second detection switch, and the second relay is connected with the first detection switch in series. Compared with the method for judging the switch detection sequence through the PLC or the single chip microcomputer, the method has the advantages that the hardware cost is reduced, corresponding programming operation is not needed by professionals, the practicability is high, the direction judgment can be simply and easily realized, the change cost is low, and the control is reliable.

Description

Direction recognition module

Technical Field

The invention relates to the technical field of direction identification, in particular to a direction identification module.

Background

At present, places such as food factories, farms or feed factories need to be disinfected to enter when people enter, and part of newly-built plants are usually two channels for distinguishing people or vehicles to enter and exit. However, most feed factories or farms are long in factory building time, and in consideration of production cost, the workers usually enter the same channel as the vehicles when the vehicles enter the channel, and only the workers are distinguished from the vehicles entering the channel. Therefore, the disinfection process has two operation modes, namely, the disinfection process is manually controlled, when people enter the disinfection process, the disinfection machine is manually controlled to work, and when people come out, the disinfection process does not need to be controlled; and secondly, the photoelectric sensor automatically carries out disinfection operation when detecting that people or other objects such as vehicles pass through.

In the prior art, the amount of engineering for changing the building structure of a factory building is too large, manual control is needed on the one hand, and on the other hand, the possibility of misoperation or operation leakage exists, but the movement direction of personnel or objects cannot be distinguished by the existing photoelectric switch, and only people or objects can be judged to block the switch, so that the disinfection treatment can be carried out in the process of entering or coming out of the personnel or vehicles, and unnecessary waste is caused.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the direction identification module which is lower in cost, simple to operate, high in practicability, low in change cost and reliable in control identification, and direction judgment can be simply and easily realized.

The technical purpose of the invention is realized by the following technical scheme: a direction identification module comprises a first detection switch, a second detection switch, a first relay and a second relay, wherein the second detection switch is installed in parallel with the first detection switch; the second relay is controlled by a second detection switch, and the second relay is connected with the first detection switch in series;

the detection switch I is used for detecting a signal and controlling the action of the relay I; the detection switch is used for detecting signals and controlling the action of the relay II;

when the first detection switch detects a signal, the first detection switch outputs a signal, the relay is disconnected after being electrified, the power supply of the second detection switch is cut off, and the second detection switch cannot work and outputs the signal of the first detection switch;

when the second detection switch detects a signal, the second detection switch outputs a signal, the second relay is switched off after being electrified, the power supply of the first detection switch is cut off, the first detection switch cannot work, and the signal of the second detection switch is output.

Through adopting this technical scheme, detection switch cooperatees with the relay, can carry out the direction and distinguish, has corresponding output signal respectively to the direction of difference simultaneously.

Furthermore, the first relay and the second relay are both normally closed time-delay power-off relays.

By adopting the technical scheme, the relay can realize instantaneous disconnection and delay closing of the circuit when receiving signals, thereby ensuring that personnel only output a signal of the detection switch when passing through the two switches.

In conclusion, the invention has the following beneficial effects:

1. the invention can distinguish the direction by matching the detection switch and the relay, and simultaneously, corresponding output signals are respectively provided for different directions;

2. compared with the method for judging the switch detection sequence through the PLC or the single chip microcomputer, the method has the advantages that the hardware cost is reduced, corresponding programming operation is not needed by professionals, the practicability is high, the direction judgment can be simply and easily realized, the change cost is low, and the control is reliable.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic diagram of the present invention applied to a factory floor tunnel

1. A first detection switch; 2. a second detection switch; 3. a first relay; 4. and a second relay.

Detailed Description

The present invention is described in further detail below with reference to FIGS. 1-2.

Example (b): a direction identification module is shown in figures 1 and 2 and comprises a first detection switch 1, a second detection switch 2, a first relay 3 and a second relay 4, wherein the first detection switch 2, the second relay 3 and the second relay 4 are installed side by side with the first detection switch 1; the second relay 4 is controlled by the second detection switch 2, and the second relay 4 is connected with the first detection switch 1 in series;

the detection switch I1 is used for detecting signals and controlling the relay I3 to act; the second detection switch 2 is used for detecting signals and controlling the second relay 4 to act.

It should be mentioned that the first detection switch 1 and the second detection switch 2 may be specifically GSM18-DH3NF photoelectric switches, but not limited to such switches, when the disinfection device is specifically used, the first detection switch 1 and the second detection switch 2 may be installed at two ends of a channel side by side, the disinfection device is controlled by the first detection switch 1, when a person or a vehicle enters a plant area through the channel, the first detection switch 1 detects a signal, on one hand, the signal is output to the disinfection device to start working, on the other hand, the signal is output to the first relay 3, the first relay 3 is powered off, the power supply of the second detection switch 2 is cut off, the second detection switch 2 cannot work, and the module only outputs the signal of the first detection switch 1, that is, the disinfection device starts working.

When personnel or vehicles leave the factory area through the passageway, earlier through detection switch two 2, detection switch two 2 detects the signal, because detection switch two 2 does not control degassing unit, detection switch two 2 only output signal for relay two 4, and the disconnection is cut off after relay two 4 received the electricity, cuts off detection switch one 1's power, and detection switch one 1 can't work, only outputs detection switch two 2's signal, and degassing unit need not begin work promptly.

In conclusion, when personnel or vehicles enter the factory area, the disinfection device works, and when the personnel or vehicles leave the factory area, the disinfection device does not work, so that the direction identification function with low cost, simple operation and strong practicability is realized.

Similarly, the module can be applied to more scenes needing direction identification by operating signals sent by the first detection switch 1 and the second detection switch 2.

The working principle is as follows: after the power supply is switched on, because the first relay 3 and the second relay 4 are both normally closed relays, the first detection switch 1 and the second detection switch 2 have current to pass through, namely, the whole circuit is in a working state.

When the detection switch I1 detects a signal, the detection switch I1 outputs the signal, the relay I3 is disconnected after being electrified, the power supply of the detection switch II 2 is cut off, the detection switch II 2 cannot work, and the signal of the detection switch I1 is output;

similarly, when the second detection switch 2 detects a signal, the second detection switch 2 outputs a signal, the second relay 4 is powered on and then is disconnected, the power supply of the first detection switch 1 is cut off, the first detection switch 1 cannot work, and the signal of the second detection switch 2 is output.

In the working process, because the relay I3 and the relay II 4 are normally closed time-delay power-off relays, namely in a first state, when a detection signal of the detection switch I1 stops, the relay I3 is not immediately closed, but is closed after the delay time adjustable on the relay I3 is delayed, so that after the detection switch I1 and the detection switch II 2 are arranged side by side together, the delay time is set, and a person or a vehicle can be ensured to pass through the two switches, only the detection signal of the detection switch I1 is output, and therefore disinfection or other operations are carried out; similarly, after the signal is detected by the second detection switch 2, the signal of the first detection switch 1 can be shielded for a set time, in the use environment, no operation is required when people or vehicles leave a factory, and the output signal of the second detection switch 2 can be only used for switching off the first relay 3, and if other operations are required, the operation can be performed according to the signal sent by the second detection switch 2.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A direction identification module is characterized by comprising a first detection switch (1), a second detection switch (2), a first relay (3) and a second relay (4), wherein the second detection switch (2), the first relay (3) and the second relay (4) are arranged side by side with the first detection switch (1), the first relay (3) is controlled by the first detection switch (1), and the first relay (3) is connected with the second detection switch (2) in series; the second relay (4) is controlled by a second detection switch (2), and the second relay (4) is connected with the first detection switch (1) in series;

the detection switch I (1) is used for detecting signals and controlling the relay I (3) to act; the second detection switch (2) is used for detecting signals and controlling the second relay (4) to act;

when the detection switch I (1) detects a signal, the detection switch I (1) outputs the signal, the relay I (3) is disconnected after being electrified, the power supply of the detection switch II (2) is cut off, the detection switch II (2) cannot work, and the signal of the detection switch I (1) is output;

when the second detection switch (2) detects a signal, the second detection switch (2) outputs the signal, the second relay (4) is powered on and then is disconnected, the power supply of the first detection switch (1) is cut off, the first detection switch (1) cannot work, and the signal of the second detection switch (2) is output.

2. A direction identification module according to claim 1, characterized in that the first relay (3) and the second relay (4) are both normally closed time delay power-off relays.