Local control / remote control integrated power distribution control circuit

Abstract

The utility model discloses a local control / remote control integrated power distribution control circuit, which comprises an Ethernet switch, a remote IO controller, a circuit breaker, an electric operating mechanism, a relay and a local control / remote control selection circuit, and is characterized in that the Ethernet switch is used for establishing Ethernet communication between the remote IO controller and a control cabin; the remote IO controller is used for executing the control instruction issued by the control cabin, collecting the opening and closing state information of the circuit breaker and reporting the information to the control cabin; the circuit breaker is installed on a power distribution circuit of each path of controlled equipment, the electric operating mechanism is used for controlling the connection and disconnection of the circuit breaker, and the relay is used as a controlled device controlled by the remote IO controller and controls the execution action of the electric operating mechanism; the local control / remote control selection circuit utilizes the local control / remote control selection switch to switch between a remote control state and a local control state. According to the utility model, the size, weight and cost of required devices are reduced under the condition that the control requirement and the function are not changed, and the local control / remote control integrated design is realized.

Description

Technical Field

[0001] The utility model relates to power distribution control of a large-span tent and all equipment and systems in the tent in an intelligent warehouse system, and specifically to an integrated local control / remote control power distribution control circuit, which is used for remote control of power distribution of a power distribution cabinet in the large-span tent and remote acquisition of the power distribution output status. Background Art

[0002] An intelligent warehouse management system with a control cabin as the main control unit. The control cabin has absolute control over the power distribution cabinets installed in the large-span tents and the right to know the power distribution output status. At the same time, the power distribution cabinets in the large-span tents should also have local control functions, and under specific conditions, manual operation can be used to enable the power distribution cabinets to complete the corresponding power distribution functions; whether in the local control state or the remote control state, the control cabin should obtain the power distribution output status information of the distribution cabinet in real time.

[0003] The power distribution cabinets in the large-span tents distribute power to equipment such as packaging, sorting, coding, loading and unloading, and lighting. They also supply power to the air conditioning system, powered rack systems, unmanned vehicle charging systems, and monitoring systems. These cabinets must not only perform these power distribution functions but also ensure that switching between remote and local control modes does not affect each other, and that power output status information is reported to the control cabin.

[0004] There is no integrated power distribution control circuit with local control / remote control functions in the prior art, which is not conducive to the power distribution control and management of the intelligent warehouse management system. Summary of the Invention

[0005] The purpose of the utility model is to provide a local control / remote control integrated power distribution control circuit for realizing power distribution function through local control or remote control.

[0006] In order to achieve the above tasks, the present invention adopts the following technical solutions:

[0007] A local control / remote control integrated power distribution control circuit includes an Ethernet switch, a remote IO controller, a circuit breaker, an electric operating mechanism, a relay, and a local control / remote control selection circuit, wherein:

[0008] The Ethernet switch is used to establish Ethernet communication between the remote IO controller and the control cabin. The remote IO controller is used to execute control instructions issued by the control cabin, collect information on the opening and closing status of the circuit breaker, and report it to the control cabin. The circuit breaker is installed on the power distribution circuit of each controlled device. The electric operating mechanism is used to control the connection and disconnection of the circuit breaker. The relay, as a controlled device controlled by the remote IO controller, controls the execution of the electric operating mechanism. The local control / remote control selection circuit uses the local control / remote control selection switch to switch the remote control state / local control state.

[0009] Furthermore, the system also includes: an AC / DC power converter for converting an AC 220V power supply into a DC 24V power supply to power the remote IO controller.

[0010] Furthermore, the remote IO controller includes an output part, an input part, an Ethernet part, and a power supply part, wherein:

[0011] The input part contains multiple inputs, one of which cooperates with the local control / remote control selection circuit to realize the conversion between the local control state and the remote control state; the remaining inputs correspond to each output in the output part one by one. When these inputs are turned on, the corresponding outputs in the output part are turned on;

[0012] The output part includes multiple outputs, each of which is connected to the power distribution circuit of the corresponding controlled device to realize the on-off control of the circuit breaker in the power distribution circuit;

[0013] The Ethernet part is used to receive control instructions from the control cabin and report the opening and closing status information of the circuit breakers in the power distribution circuit;

[0014] The power supply part adopts DC 24V power supply.

[0015] Furthermore, the local control / remote control selection circuit includes a local control circuit, a remote control circuit, a local control / remote control selection switch SA1 and a relay K1;

[0016] When SA1 is in the "local control" position, the first input of the remote IO controller is connected, and the remote IO controller will report the status of the selection switch as "local control" through the Ethernet part. At this time, the local control line is in the power supply state, the control switch on the local control line is in the enabled state, the remote control line is in the power-off state, and the control switch on the remote control line is in the disabled state;

[0017] When SA1 is placed in the "remote control" position, the first input of the remote IO controller is disconnected, and the remote IO controller will report the status of the selection switch as "remote control" through the Ethernet part. At this time, the local control line is in the power-off state, the control switch on the local control line is in the disabled state, the remote control line is in the power-on state, and the control switch on the remote control line is in the enabled state.

[0018] Furthermore, the local control / remote control selection switch SA1 is a double-pole two-position selection switch having local control and remote control selection positions; K1 is a double-pole relay.

[0019] Compared with the prior art, the present invention has the following technical features:

[0020] The local control / remote control integrated power distribution control circuit provided by the utility model utilizes a selection switch to realize the control conversion between the local control state and the remote control state; utilizes the interlocking principle of relays to ensure that erroneous operation of the local control (or remote control) in the remote control (or local control) state will not affect the power distribution output state; adopts an electric operating mechanism as the action execution mechanism of the circuit breaker, eliminating the contactor of the traditional power distribution control circuit that is bulky, heavy and expensive; the utility model reduces the volume, weight and cost of the required components while maintaining the control requirements and functions, and the utility model can provide a reference method for the design of similar power distribution control circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the circuit diagram of the remote IO controller;

[0022] Figure 2 This is the circuit diagram of the AC / DC power converter;

[0023] Figure 3 Circuit diagram of local control / remote control selection circuit;

[0024] Figure 4 This is an example of applying the utility model to the sorting, grouping, palletizing, packaging and coding distribution circuit. DETAILED DESCRIPTION

[0025] The present utility model provides an integrated local control / remote control power distribution control circuit, which is used to realize corresponding power distribution functions by operating corresponding switches on the power distribution cabinet in the local control (local manual control) state, and realize corresponding power distribution functions by sending corresponding power distribution instructions from the Ethernet network in the remote control state. The status information of the power distribution output in both the remote control state and the local control state should be reported to the control cabin; in addition, in the remote control state, any erroneous operation of the local control should not affect the power distribution output state. Similarly, in the local control state, any erroneous operation of the remote control should not affect the power distribution output state.

[0026] The utility model discloses an integrated local control / remote control power distribution control circuit, comprising an Ethernet switch, a remote IO controller, a circuit breaker, an electric operating mechanism, a relay, an AC / DC power converter, and a local control / remote control selection circuit, wherein:

[0027] The Ethernet switch is used to establish Ethernet communication between the remote IO controller and the control cabin; the remote IO controller is used to execute control instructions issued by the control cabin, collect the circuit breaker's opening and closing status information and report it to the control cabin; the circuit breaker is installed on the power distribution circuit of each controlled device, the electric operating mechanism is used to control the connection and disconnection of the circuit breaker, and the relay, as a controlled device controlled by the remote IO controller, controls the execution of the electric operating mechanism; the AC / DC power converter is used to convert AC 220V power to DC 24V power to power the remote IO controller; the local control / remote control selection circuit uses the local control / remote control selection switch to switch the remote control state / local control state.

[0028] In one embodiment of the present invention, the power distribution circuit is a circuit for equipment such as packaging, sorting, coding, loading and unloading, lighting, air-conditioning system, power shelf system, unmanned vehicle charging system, and monitoring system. Since the power distribution control principles of each circuit are the same and only the output power is different, only the power distribution circuit of the sorting equipment is used as an example for explanation.

[0029] See also Figure 1 , the remote IO controller includes output part, input part, Ethernet part and power supply part, among which:

[0030] The input part contains multiple inputs, one of which cooperates with the local control / remote control selection circuit to realize the conversion between local control state and remote control state; the remaining inputs correspond to each output in the output part one by one. When these inputs are turned on, the corresponding outputs in the output part are turned on;

[0031] The output part includes multiple outputs, each of which is connected to the power distribution circuit of the corresponding controlled device to realize the on-off control of the circuit breaker in the power distribution circuit;

[0032] The power supply part adopts DC 24V power supply.

[0033] The Ethernet part is used to receive control instructions issued by the control cabin and report the opening and closing status information of the circuit breakers in the power distribution circuit.

[0034] When in remote control state, the Ethernet part parses the distribution circuit corresponding to the controlled device from the control instruction, so that the input of the path corresponding to the distribution circuit in the input part is turned on, thereby making the output of the corresponding path in the output part turned on, the circuit breaker in the distribution circuit closed, and the distribution circuit output; the Ethernet part reports the status information of the distribution circuit as the output status.

[0035] Figure 1In the given example, the output part has 8-way output, wherein the 1st to 7th output respectively corresponds to different power distribution circuits; taking the 1st output as an example, DO1-L and DO1-R are the 1st output of the remote IO controller, and DO1-L and DO1-R are equivalent to the two poles of a single-pole switch, when the output is high, DO1-L and DO1-R are connected, and when the output is low, DO1-L and DO1-R are disconnected; the input part has 8-way, wherein the 1st is matched with the local control / remote control selection circuit to realize the conversion between the local control state and the remote control state; the 2nd to 8th corresponds to the 1st to 7th of the output part. Taking the 1st as an example, DI1 is the 1st input of the remote IO controller, when DI1 is connected with GND, the input is valid, indicating that the current is in the local control state, and is reported through the Ethernet, when DI1 is disconnected with GND, the input is invalid.

[0036] As shown in Figure 2 It is an AC / DC power converter which converts AC 220V power into DC 24V power to supply power for the remote IO controller.

[0037] As shown in Figure 3 The circuit is a local control / remote control selection circuit, which comprises a local control circuit, a remote control circuit, a local control / remote control selection switch SA1 and a relay K1, wherein SA1 is a double-pole two-position selection switch with local control and remote control selection positions; K1 is a double-pole relay.

[0038] When SA1 is placed in the "local control" position, 13 and 14 of SA1 are connected, and 21 and 22 are disconnected, at this time, the 1st input of the remote IO controller is connected with GND, and the remote IO controller will report the state of the selection switch as "local control" state through the Ethernet part, at the same time, the line package of K1 is de-energized, the 6 and 7 contacts of K1 are connected, and the 3 and 4 contacts are disconnected, at this time, the local control circuit is in the power supply state, the control switch on the local control circuit is in the enabled state, the remote control circuit is in the de-energized state, and the control switch on the remote control circuit is in the non-enabled state; when SA1 is placed in the "remote control" position, 13 and 14 of SA1 are disconnected, and 21 and 22 are connected, at this time, the 1st input of the remote IO controller is disconnected with GND, and the remote IO controller will report the state of the selection switch as "remote control" state through the Ethernet part, at the same time, the line package of K1 is energized, the 6 and 7 contacts of K1 are disconnected, and the 3 and 4 contacts are connected, at this time, the local control circuit is in the de-energized state, the control switch on the local control circuit is in the non-enabled state, the remote control circuit is in the power supply state, and the control switch on the remote control circuit is in the enabled state.

[0039] As shown in Figure 4 It is an example of the application of the utility model on the sorting group packaging coding power distribution circuit; the example comprises a circuit breaker, an electric operating mechanism, a selection switch, a relay and an indicator, wherein:

[0040] QF2 is an auxiliary circuit breaker installed on the sorting and distribution power supply line; MOD is an electric operating mechanism powered by AC 220V. When S2 and S3 are connected, the electric operating mechanism performs corresponding actions to change the circuit breaker from the open state to the closed state. When S3 and S4 are connected, the electric operating mechanism performs corresponding actions to change the circuit breaker from the closed state to the open state.

[0041] The local operation switch SA2 is a single-pole selector switch; K2 is a double-pole relay; HL2 is the local power distribution output status indicator; when Figure 3 When SA1 in the circuit is placed in the "local control" position, the control switch on the local control line is in the enabled state (i.e. 203 is in the power supply state and 201 is in the power-off state). At this time, if SA2 is closed, the coil of K2 is energized, contacts 3 and 4 are connected, contacts 3 and 2 are disconnected, and the electric operating mechanism performs the closing action, so that the circuit breaker changes from the separated state to the closed state, and the power distribution of this line is output. At the same time, the HL2 indicator light lights up to indicate that the power distribution of this line is being output. The auxiliary circuit of the QF2 circuit breaker is closed, so that the second input of the remote IO controller is connected to GND, and the remote IO control The controller will report the status information of the power distribution output of this line (i.e. the opening and closing status information of the circuit breaker) as the output status; if the operation SA2 is disconnected, the coil of K2 loses power, contacts 3 and 4 are disconnected, contacts 3 and 2 are connected, and the electric operating mechanism performs the opening action, so that the circuit breaker changes from the closed state to the separated state, and the power distribution of this line stops outputting. At the same time, the HL2 indicator light goes out to indicate that there is no output of this power distribution. The auxiliary circuit of the QF2 circuit breaker is disconnected, so that the second input of the remote IO controller is disconnected from GND, and the remote IO controller will report the status information of the power distribution output of this line as no output state.

[0042] when Figure 3When SA1 in is placed in the "remote control" position, the control switch on the remote control line is in the enabled state (i.e. 201 is in the power supply state and 203 is in the power-off state). At this time, if the remote IO controller receives the closing command of this circuit, DO1-L and DO1-R are connected, the coil of K2 is energized, contacts 3 and 4 are connected, contacts 3 and 2 are disconnected, and the electric operating mechanism performs the closing action, so that the circuit breaker changes from the separated state to the closed state, and the power distribution of this circuit is output. At the same time, the HL2 indicator light lights up to indicate that the power distribution of this circuit is being output. The auxiliary circuit of the QF2 circuit breaker is closed, so that the second input of the remote IO controller is connected to GND. If the circuit breaker is connected, the remote IO controller will report the status information of the power distribution output of this line as output status; if the remote IO controller receives the disconnection command of this line, DO1-L and DO1-R will be disconnected, the coil of K2 will lose power, contacts 3 and 4 will be disconnected, contacts 3 and 2 will be connected, and the electric operating mechanism will perform the opening action, so that the circuit breaker changes from the closed state to the separated state, and the power distribution of this line will stop outputting. At the same time, the HL2 indicator light will go out to indicate that the power distribution of this line has no output. The auxiliary circuit of the QF2 circuit breaker is disconnected, so that the second input of the remote IO controller is disconnected from GND, and the remote IO controller will report the status information of the power distribution output of this line as no output status.

[0043] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A local control / remote control integrated power distribution control circuit, characterized in that: It includes an Ethernet switch, a remote IO controller, a circuit breaker, an electric operating mechanism, a relay, and a local control / remote control selection circuit, among which: The Ethernet switch is used to establish Ethernet communication between the remote IO controller and the control cabin. The remote IO controller is used to execute control instructions issued by the control cabin, collect information on the opening and closing status of the circuit breaker, and report it to the control cabin. The circuit breaker is installed on the power distribution circuit of each controlled device. The electric operating mechanism is used to control the connection and disconnection of the circuit breaker. The relay, as a controlled device controlled by the remote IO controller, controls the execution of the electric operating mechanism. The local control / remote control selection circuit uses the local control / remote control selection switch to switch the remote control state / local control state.

2. The local control / remote control integrated power distribution control circuit according to claim 1, characterized in that: Also includes: The AC / DC power converter is used to convert AC 220V power into DC 24V power to power the remote IO controller.

3. The local control / remote control integrated power distribution control circuit according to claim 1, characterized in that: The remote IO controller includes an output part, an input part, an Ethernet part, and a power supply part, among which: The input part contains multiple inputs, one of which cooperates with the local control / remote control selection circuit to realize the conversion between the local control state and the remote control state; the remaining inputs correspond to each output in the output part one by one. When these inputs are turned on, the corresponding outputs in the output part are turned on; The output part includes multiple outputs, each of which is connected to the power distribution circuit of the corresponding controlled device to realize the on-off control of the circuit breaker in the power distribution circuit; The Ethernet part is used to receive control instructions from the control cabin and report the opening and closing status information of the circuit breakers in the power distribution circuit; The power supply part adopts DC 24V power supply.

4. The local control / remote control integrated power distribution control circuit according to claim 1, characterized in that: The local control / remote control selection circuit includes a local control circuit, a remote control circuit, a local control / remote control selection switch SA1 and a relay K1; When SA1 is in the "local control" position, the first input of the remote IO controller is connected, and the remote IO controller will report the status of the selector switch as "local control" through the Ethernet part. At this time, the local control line is in the power supply state, the control switch on the local control line is in the enabled state, the remote control line is in the power-off state, and the control switch on the remote control line is in the disabled state; When SA1 is placed in the "remote control" position, the first input of the remote IO controller is disconnected, and the remote IO controller will report the status of the selection switch as "remote control" through the Ethernet part. At this time, the local control line is in the power-off state, the control switch on the local control line is in the disabled state, the remote control line is in the power-on state, and the control switch on the remote control line is in the enabled state.

5. The local control / remote control integrated power distribution control circuit according to claim 4, characterized in that: The local control / remote control selection switch SA1 is a double-pole, two-position selection switch with local control and remote control selection positions; K1 is a double-pole relay.

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