Safety operation device for remote emergency stop

Abstract

The utility model relates to the field of automation control, and particularly discloses a safety operation device for remote emergency stop, which comprises a safety operation button; the transmitting end optical fiber converters are connected with the safety operation buttons in a one-to-one correspondence manner, and each transmitting end optical fiber converter comprises an optical transceiver; and the receiving end optical fiber converters are connected with the transmitting end optical fiber converters in a one-to-one correspondence manner, and each receiving end optical fiber converter comprises an optical transceiver. Wherein the safety operation button and the sending end optical fiber converter correspondingly connected with the safety operation button are connected with the corresponding receiving end optical fiber converter through an optical cable to form a control circuit. According to the utility model, through the design of a group of multi-channel switching value optical fiber converters, the problem that equipment cannot be remotely and emergently stopped under remote communication faults of a control system is solved, a solution with low cost and high performance is provided, and reliable operation of equipment needing remote hard wiring operation and interlocking can be realized; and together with a remote communication operation station, the system is used as a reliable backup safety guarantee means for centralized control.

Description

Technical Field

[0001] The utility model relates to the field of automatic control, in particular to a safety operating device for remote emergency parking. Background Art

[0002] As the production operation rooms of enterprises are renovated and built away from dangerous places, in order to realize the remote safety shutdown of the disease control center, in addition to improving the control logic in the basic automation system, the existing technology mainly adopts redundant safety PLC (Programmable Logic Controller) system for signal transmission and operation. The operating device in the existing technology includes the safety operation button of the control center console, the safety PLC system of the control center, the optical transceiver, the optical cable, the optical transceiver, the safety PLC system of the field operation room and the electric control cabinet / field operation box. Among them, the safety PLC system includes terminals, modules and relays, and its system cost is high, the supply cycle is long, the overall system has many optical fiber and cable connectors, and there are many intermediate links.

[0003] Based on this, the existing technology still needs to be improved. Utility Model Content

[0004] The main purpose of the utility model is to provide a safety operating device for remote emergency parking to solve the problem that the equipment cannot be remotely emergency stopped when the remote communication of the control system fails. It provides a low-cost, high-performance solution, which can realize the reliable operation of equipment that requires long-distance hard-wired operation and interlocking, and together with the remote communication operation station, it serves as a reliable backup safety guarantee means for centralized control.

[0005] According to one aspect of the utility model, a safety operation device for remote emergency parking is provided, and the safety operation device specifically comprises:

[0006] Safety operation button;

[0007] A transmitting end optical fiber converter, the transmitting end optical fiber converter is connected to the safety operation button in a one-to-one correspondence and comprises an optical transceiver;

[0008] A receiving end optical fiber converter, which is connected to the transmitting end optical fiber converter in a one-to-one correspondence and includes an optical transceiver;

[0009] Wherein, the safety operation button and the corresponding transmitting-end optical fiber converter connected thereto are connected to the corresponding receiving-end optical fiber converter via an optical cable to form a control circuit.

[0010] According to an embodiment of the utility model, the device further comprises an electric control cabinet or an operation box terminal, and the electric control cabinet or the operation box terminal is connected to a plurality of the receiving end optical fiber converters.

[0011] According to an embodiment of the utility model, after the safety operation button is set to be closed, the control circuit is set to a normally closed state.

[0012] According to an embodiment of the utility model, after the safety operation button is set to be turned on, the control circuit is set to a normally open state.

[0013] According to an embodiment of the utility model, the device further comprises a multi-loop control circuit consisting of a plurality of the control circuits connected in parallel or in series.

[0014] According to an embodiment of the present utility model, after all corresponding safety operation buttons in the multi-loop control circuit are simultaneously set to be closed, the multi-loop control circuit is set to a normally closed state.

[0015] According to an embodiment of the present utility model, after all corresponding safety operation buttons in the multi-loop control circuit are simultaneously set to be turned on, the multi-loop control circuit is set to a normally open state.

[0016] According to an embodiment of the present utility model, a plurality of control circuits are connected in parallel or in series with each other via relays.

[0017] According to an embodiment of the present utility model, the safety operation button is installed on the control center operating console.

[0018] According to an embodiment of the present utility model, the transmitting end optical fiber converter and the receiving end optical fiber converter are both multi-channel switching optical fiber converters.

[0019] By adopting the above technical solution, the utility model has at least one of the following advantages compared with the prior art:

[0020] 1. The device according to the utility model adopts a control circuit to realize remote emergency parking of unmanned stations, wherein the multi-channel switch optical fiber converter can support forward and bidirectional transmission requirements, solve the interference and error signals of long-distance cable transmission, and further effectively solve the problem and risk of being unable to remotely operate the on-site equipment shutdown due to communication failure of the basic automation system;

[0021] 2. The device according to the utility model adopts a set of multi-channel switch optical fiber converter design, the cost is greatly reduced compared with the safety PLC, the procurement and implementation period is short, and a low-cost, high-performance solution is provided;

[0022] 3. A low-cost remote emergency stop safety operation device can achieve reliable operation of equipment that requires remote hard-wired operation and interlocking, and together with the remote communication operation station, it serves as a reliable backup safety guarantee for centralized control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some implementation cases of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram showing a single-loop control circuit of a safety operating device for remote emergency parking according to an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of a dual-loop control circuit of a safety operating device for remote emergency parking according to an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as being "fixed on" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] Figure 1 The schematic diagram of a single-loop control circuit of a safety operation device for remote emergency parking according to an embodiment of the utility model is shown. The safety operation device is mainly used for remote emergency parking from a centralized control center to field equipment, and is also suitable for remote emergency parking at unmanned stations. The safety operation device for remote emergency parking includes: a safety operation button; a transmitting end fiber optic converter, which is connected to the safety operation button in a one-to-one correspondence and includes an optical transceiver; a receiving end fiber optic converter, which is connected to the transmitting end fiber optic converter in a one-to-one correspondence and includes an optical transceiver; wherein the safety operation button and its correspondingly connected transmitting end fiber optic converter are connected to the corresponding receiving end fiber optic converter via an optical cable to form a control circuit.

[0032] In the embodiment of the present utility model, Figure 1 In the single-loop control circuit shown, when the safety operation button K is set to off, that is, when the safety operation button K is pressed, the shielded cables D+ and D- are short-circuited and turned on, and the control circuit state is normally closed. When the safety operation button K is set to on, the shielded cables D+ and D- are disconnected, and the control circuit state is normally open.

[0033] In an embodiment of the present utility model, Figure 2 The following is a schematic diagram of a dual-loop control circuit for a safety operation device for remote emergency parking according to an embodiment of the utility model. Figure 2In the figure, K1 and K2 represent the safety operation buttons of control circuit 1 and control circuit 2, A and C represent the transmitting end fiber converters of control circuit 1 and control circuit 2, B and D represent the receiving end fiber converters of control circuit 1 and control circuit 2, DK1 and DK2 represent the outputs of control circuit 1 and control circuit 2, and output them to the passive contacts of low voltage cabinet or field operation box. Taking double circuit as an example, the safety operation buttons K1 and K2 of the remote operation room console are connected to the transmitting end fiber converter through shielded cable, and then transmitted to the receiving end fiber converter through different optical cables, and output through relays, and K1 and K2 can be output in series and parallel. Compared with the safety PLC system, the intermediate links such as the intermediate terminals of the safety PLC control cabinet and the wiring of the PLC module are reduced.

[0034] In the embodiment of the present utility model, Figure 2 In the dual-loop control circuit shown, when the safety operation buttons K1 and K2 are set to be closed at the same time, that is, when the safety operation buttons K1 and K2 are pressed at the same time, the shielded cables D+ and D- are short-circuited and turned on, and the control circuit state is normally closed. When the safety operation buttons K1 and K2 are set to be turned on at the same time, the shielded cables D+ and D- are disconnected, and the control circuit state is normally open. K1 and K2 can be connected in series or in parallel.

[0035] In the technical solution of the utility model, by providing a low-cost safety operating device for remote emergency parking, reliable operation of equipment requiring remote hard-wired operation and interlocking can be achieved, and together with the remote communication operation station, it serves as a reliable backup safety guarantee means for centralized control, with a short implementation period, low implementation requirements, and a lower construction cost than the safety PLC system, providing a low-cost, high-performance solution. Furthermore, a low-cost safety operating device for remote emergency parking of the utility model can achieve reliable operation of equipment requiring remote hard-wired operation and interlocking, which helps to achieve unmanned remote emergency parking of the station, and the utility model has significant economic and social benefits.

[0036] In some embodiments, the device further comprises an electric control cabinet or an operation box terminal, and the electric control cabinet or the operation box terminal is connected to a plurality of receiving-end optical fiber converters.

[0037] In some embodiments, after the safety operation button is set to off, the control circuit is set to a normally closed state.

[0038] In some embodiments, after the safety operation button is set to on, the control circuit is set to a normally open state.

[0039] In some embodiments, the device further comprises a multi-loop control circuit consisting of a plurality of control circuits connected in parallel or in series with each other.

[0040] In some embodiments, after all corresponding safety operation buttons in the multi-loop control circuit are simultaneously set to off, the multi-loop control circuit is set to a normally closed state.

[0041] In some embodiments, after all corresponding safety operation buttons in the multi-loop control circuit are simultaneously set to on, the multi-loop control circuit is set to a normally open state.

[0042] In some embodiments, several control circuits are connected in parallel or in series with each other via relays.

[0043] In some embodiments, the safety operation button is installed on the control center console.

[0044] In some embodiments, both the transmitting end fiber optic converter and the receiving end fiber optic converter are multi-channel switching fiber optic converters.

[0045] The utility model can achieve the following effects:

[0046] 1. The device according to the utility model adopts a control circuit to realize remote emergency parking of unmanned stations, wherein the multi-channel switch optical fiber converter can support forward and bidirectional transmission requirements, solve the interference and error signals of long-distance cable transmission, and further effectively solve the problem and risk of being unable to remotely operate the on-site equipment shutdown due to communication failure of the basic automation system;

[0047] 2. The device according to the utility model adopts a set of multi-channel switch optical fiber converter design, the cost is greatly reduced compared with the safety PLC, the procurement and implementation period is short, and a low-cost, high-performance solution is provided;

[0048] 3. A low-cost remote emergency stop safety operation device can achieve reliable operation of equipment that requires remote hard-wired operation and interlocking, and together with the remote communication operation station, it serves as a reliable backup safety guarantee for centralized control.

[0049] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0050] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0051] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A safety operating device for remote emergency parking, characterized in that: The device comprises: Safety operation button; A transmitting end optical fiber converter, the transmitting end optical fiber converter is connected to the safety operation button in a one-to-one correspondence and comprises an optical transceiver; A receiving end optical fiber converter, which is connected to the transmitting end optical fiber converter in a one-to-one correspondence and includes an optical transceiver; Wherein, the safety operation button and the corresponding transmitting-end optical fiber converter connected thereto are connected to the corresponding receiving-end optical fiber converter via an optical cable to form a control circuit.

2. The device according to claim 1, characterized in that The device also includes an electric control cabinet or an operation box terminal, and the electric control cabinet or the operation box terminal is connected to a plurality of the receiving end optical fiber converters.

3. The device according to claim 1, characterized in that After the safety operation button is set to off, the control circuit is set to a normally closed state.

4. The device according to claim 1, characterized in that After the safety operation button is set to be turned on, the control circuit is set to a normally open state.

5. The device according to claim 1, characterized in that The device also includes a multi-loop control circuit consisting of a plurality of the control circuits connected in parallel or in series.

6. The device according to claim 5, characterized in that After all corresponding safety operation buttons in the multi-loop control circuit are simultaneously set to be closed, the multi-loop control circuit is set to a normally closed state.

7. The device according to claim 5, characterized in that After all corresponding safety operation buttons in the multi-loop control circuit are simultaneously set to be turned on, the multi-loop control circuit is set to a normally open state.

8. The device according to claim 5, characterized in that The control circuits are connected in parallel or in series with each other via relays.

9. The device according to claim 1, characterized in that The safety operation button is installed on the control center console.

10. The device according to claim 1, characterized in that The transmitting end optical fiber converter and the receiving end optical fiber converter are both multi-channel switching optical fiber converters.

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