Control box, signal expansion box and network architecture-based controller formed by control box and signal expansion box

Abstract

The utility model discloses a control box, signal expansion boxes and a controller based on a network architecture, which can respectively collect signals of monitoring devices at each monitoring point by increasing the number of the signal expansion boxes under the conditions of huge production scale and large number of distributed monitoring points, and then quickly centralize the signals through wired communication connection with the control box. The number of monitoring points is not limited any more, and expandability is good; different protocols are configured through the signal expansion box, detectors of various standard protocols are perfectly compatible, and access of all analog quantity and bus type signals can be achieved through one controller. The connection between the control box and the signal expansion box and the internal connection of each box are based on a network architecture of wired communication, the data transmission speed is high, and the throughput is high; a temperature control panel and a cooling fan are arranged in the controller, so that an automatic temperature control function can be achieved, temperature control parameters can be freely set, and it is guaranteed that the performance of the controller cannot be reduced due to overhigh temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a control box, a signal expansion box and a controller based on a network architecture. Background Art

[0002] In the field of detection, a controller is a monitoring instrument that collects the output signal of the detector, links external components, and centrally displays and controls. The existing controller includes a chassis, the back panel of which is provided with signal input terminals and signal output terminals, and the chassis is provided with a signal acquisition board, a DO control board, and a main control board. This type of controller has limited space and poor scalability. The signal terminals are concentrated together, which is easy to cause confusion and the number of terminals that can be arranged is limited. In addition, the circuits in the chassis are mixed and the temperature is high, resulting in poor heat dissipation of the board, reduced performance, and potential safety hazards, which urgently need to be improved. Utility Model Content

[0003] The problem to be solved by the utility model is to provide a control box, a signal expansion box and a controller based on a network architecture which have good scalability, clear functions, neat wiring and safe use.

[0004] A technical solution adopted by the utility model to solve the above-mentioned problem is: a control box, including a chassis, air inlets and air outlets are arranged on the two side panels of the chassis, a plurality of first signal connection terminals for electrically connecting to linkage devices are arranged on the rear panel of the chassis, the first signal connection terminal is electrically connected to the DO control board, the DO control board is connected to the first network switch by wired communication, the first network switch is connected to the main control board by wired communication, the first network switch is connected to the touch screen installed on the front panel of the chassis by wired communication, the first network switch is connected to the first temperature control board by wired communication, the first temperature control board is electrically connected to a first temperature sensor for monitoring the temperature near the main control board, and the first temperature control board is electrically connected to a row of first cooling fans; the first network switch is installed on the inner side of the rear panel of the chassis, and the first network switch is provided with at least one first network interface on the rear panel of the chassis for wired communication connection with the second network switch of the signal extension box.

[0005] Compared with the prior art, the advantage of the control box of the utility model is that its first signal connection terminal is electrically connected to the DO control board and is specifically used to connect linkage devices, thereby increasing the number of connectable linkage devices and avoiding confusion, making the wiring neat; and it can be connected to multiple signal expansion boxes by wired communication to form a controller, which has better scalability.

[0006] As an improvement, the first temperature control board is electrically connected to the second temperature sensor; the main control board is installed on one side of the chassis, and a plurality of first overhead columns are provided between the main control board and the chassis bottom plate; the DO control board is installed above the main control board, and one end of the DO control board close to the first cooling fan protrudes from the main control board and is fixed to the chassis bottom plate through a column, and a first connecting column is provided between the other end of the DO control board and the main control board, and the first temperature sensor is arranged between the main control board and the DO control board; the first temperature control board is arranged at intervals between the main control board and the first driving power supply on the other side of the chassis, and a plurality of first pillars are provided between the first temperature control board and the chassis bottom plate, the second temperature sensor is arranged below the first temperature control board in the middle of the chassis, the first network switch is arranged behind the first temperature control board, and a plurality of first support columns are provided between the first network switch and the chassis bottom plate; the first cooling fan is mounted between the first bracket plates on the front and rear sides and are respectively arranged in front of the main control board, the first temperature control board and the first driving power supply. The panels form two rows in the box with scientific distribution, making the signal output lines neat and reasonable. The main control board and the second drive power supply with more heat dissipation are arranged on both sides of the chassis closer to the air outlets at the rear. The first cooling fan in the front row draws air entering from the air inlet at the front, takes away the heat mainly emitted by the main control board, the first network switch and the DO control board, and sends it out from the air outlet at the rear, which can better control the temperature inside the chassis.

[0007] As an improvement, it also includes a network connection board, which is installed on the inner side of the front plate of the chassis, and is connected to the main control board by wired communication. The network connection board is provided with a USB interface opened on the front plate of the chassis for plugging in the memory, so that the memory can be plug-and-play, that is, the historical data and alarm records can be freely exported.

[0008] As an improvement, a VPN port is provided on the main control panel, so that the controller has a VPN function, and the operation and maintenance personnel can remotely calibrate the front-end detector through the controller, which greatly improves the convenience of operation and maintenance.

[0009] Another technical solution adopted by the utility model to solve the above-mentioned problem is: a signal extension box, including a box body, two side panels of the box body are provided with air inlet holes and air outlet holes, a plurality of second signal connection terminals for electrically connecting to monitoring devices are arranged on the rear panel of the box body, the second signal connection terminals are electrically connected to the first signal acquisition board and the second signal acquisition board respectively, the first signal acquisition board and the second signal acquisition board are respectively connected to the second network switch installed on the inner side of the rear panel of the box body by wired communication, the second network switch is connected to the second temperature control board by wired communication, the second temperature control board is electrically connected to a third temperature sensor for monitoring the temperature of the signal acquisition board, and the second temperature control board is electrically connected to a row of second cooling fans; the second network switch is provided with a second network interface for wired communication connection with the first network switch of the control box.

[0010] Compared with the prior art, the signal expansion box of the utility model has the advantages of being dedicated to collecting detector signals, and the added second signal acquisition board enables the second signal connection terminals arranged on the rear panel of the box to connect more detectors, thereby improving the scalability of the controller formed by the wired communication connection with the control box, so as to be applied to the monitoring needs of more detection points under a larger production scale.

[0011] As an improvement, a plurality of second supporting columns are provided between the second network switch and the bottom plate of the box, the first signal acquisition board is installed on one side of the box, a plurality of second overhead columns are provided between the first signal acquisition board and the bottom plate of the box, the second signal acquisition board is installed above the first signal acquisition board and a plurality of second connecting columns are provided between the two, the third temperature sensor is arranged between the first signal acquisition board and the second signal acquisition board, the second temperature control board is arranged at intervals between the first signal acquisition board and the second driving power supply on the other side of the box, a plurality of second supporting columns are provided between the second temperature control board and the bottom plate of the box, the second temperature control board is electrically connected to a fourth temperature sensor for monitoring the temperature in the middle of the box, the fourth temperature sensor is arranged under the second temperature control board, the second cooling fan is arranged between the second bracket plates on the front and rear sides and are respectively arranged in front of the first signal acquisition board, the second temperature control board and the second driving power supply. The panels form two rows in the box and are distributed scientifically, so that the signal access lines are arranged neatly and reasonably. The signal acquisition board and the second drive power supply with more heat dissipation are arranged on both sides of the box closer to the rear air outlet. The second cooling fan in the front row draws air entering from the front air inlet, takes away the heat mainly emitted by the first signal acquisition board, the second signal acquisition board and the second network switch, and sends it out from the rear air outlet, which can better control the temperature inside the box.

[0012] Another technical solution adopted by the present invention to solve the above problem is: a controller based on a network architecture, which is composed of the above control box and at least one of the above signal expansion boxes connected by wired communication.

[0013] Compared with the prior art, the advantage of the controller of the utility model is that when the production scale is large and the number of monitoring points is large, the signals of the monitoring devices at each monitoring point can be collected separately by adding a number of signal expansion boxes, and then quickly concentrated through wired communication connection with the control box, the number is no longer limited, and the scalability is good; the signal expansion box can be configured by protocol, and it is perfectly compatible with detectors of various standard protocols. One controller can access all analog quantities and bus signals; the connection between the control box and the signal expansion box, as well as the internal connection of each box are based on the network architecture, with fast data transmission speed and high throughput. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the control box of the utility model (the top plate of the box is omitted).

[0015] Figure 2 It is a three-dimensional schematic diagram of the control box of the utility model (the top plate, front plate and touch screen of the box are omitted).

[0016] Figure 3 It is a three-dimensional schematic diagram of the signal extension box of the utility model (the top plate of the box is omitted).

[0017] Figure 4 It is a three-dimensional schematic diagram of the signal extension box of the utility model (the top plate and the front plate of the box are omitted). DETAILED DESCRIPTION

[0018] The following is a description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, which include various details of the embodiments of the present invention to aid understanding, which should be considered as merely exemplary. In order to make the box clearly visible, the communication wires and wires in the box are not drawn. Therefore, it should be recognized by those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0019] The network-based controller of the preferred embodiment is composed of a control box 1 connected by wired communication with at least one signal extension box 2. The signal extension box 2 can be added according to the number of monitoring points required.

[0020] Among them, the control box 1 is as follows Figure 1 and 2As shown, it includes a chassis 10, and air inlets (not marked in the figure) and air outlets (not marked in the figure) are provided on the two side panels of the chassis 10. A plurality of first signal connection terminals 101 for electrically connecting to a linkage device (not shown in the figure) are arranged on the rear panel of the chassis 10. The first signal connection terminals 101 are electrically connected to a DO control board 102, and the DO control board 102 is connected to a first network switch 103 by wired communication. The first network switch 103 is connected to a main control board 104 by wired communication. The first network switch 103 is connected to a touch screen 109 installed on the front panel of the chassis 10 by wired communication. The first network switch 103 is connected to the first temperature control board 105 by wired communication, the first temperature control board 105 is electrically connected to a first temperature sensor (not shown in the figure) for monitoring the temperature near the main control board 104, and the first temperature control board 105 is electrically connected to a row of three first cooling fans 107; the first network switch 103 is installed on the inner side of the rear panel of the chassis 10, and the first network switch 103 is provided with at least one first network interface (not shown in the figure) on the rear panel of the chassis 10 for wired communication connection with the second network switch 204 of the signal extension box 2. The first temperature control board 105 is electrically connected to the second temperature sensor (not shown in the figure); the main control board 104 is installed on one side of the chassis 10, and a plurality of first overhead columns (not marked in the figure) are provided between the main control board 104 and the bottom plate of the chassis 10, the DO control board 102 is installed above the main control board 104, one end of the DO control board 102 close to the first cooling fan 107 protrudes from the main control board 104 and is fixed to the bottom plate of the chassis 10 through a column, a first connecting column (not marked in the figure) is provided between the other end of the DO control board 102 and the main control board 104, and the first temperature sensor is arranged between the main control board 104 and the DO control board 102; the first temperature control board 105 is spaced The first temperature control board 105 is arranged between the main control board 104 and the first driving power supply 106 on the other side of the chassis 10, a plurality of first pillars (not marked in the figure) are arranged between the first temperature control board 105 and the bottom plate of the chassis 10, the second temperature sensor is arranged below the first temperature control board 105 in the middle of the chassis 10, the first network switch 103 is arranged behind the first temperature control board 105, and a plurality of first supporting pillars (not marked in the figure) are arranged between the first network switch 103 and the bottom plate of the chassis 10; three first cooling fans 107 are set between two first bracket plates (not marked in the figure) on the front and rear sides and are arranged in front of the main control board 104, the first temperature control board 105 and the first driving power supply 106 respectively. It also includes a network connection board 108, which is installed on the inner side of the front plate of the chassis 10, and the network connection board 108 is connected to the main control board 104 by wired communication, and the network connection board 108 is provided with a USB interface (not marked in the figure) for plugging in a memory opened on the front plate of the chassis 10.Handles (not shown) are provided on both sides of the front panel of the chassis 10. In addition, a VPN port is provided on the main control board 104, and maintenance personnel can remotely connect to the main control board 104 through the VPN port to calibrate the front-end detector without having to go to the site, which greatly improves the convenience of operation and maintenance.

[0021] Among them, the signal expansion box 2 is as follows Figure 3 and 4 As shown, it includes a box body 20, and air inlet holes (not marked in the figure) and air outlet holes (not marked in the figure) are provided on the two side panels of the box body 20. A plurality of second signal connection terminals 201 for electrically connecting to the monitoring device are arranged on the rear panel of the box body 20. The second signal connection terminals 201 are electrically connected to the first signal acquisition board 202 and the second signal acquisition board 203 respectively. The first signal acquisition board 202 and the second signal acquisition board 203 are respectively connected to the second network switch 204 installed on the inner side of the rear panel of the box body 20 by wired communication. The second network switch 204 is connected to the second temperature control board 205 by wired communication. The second temperature control board 205 is electrically connected to a third temperature sensor (not shown in the figure) for monitoring the temperature of the signal acquisition board. The second temperature control board 205 is electrically connected to a row of second cooling fans 207; the second network switch 204 is provided with a second network interface (not marked in the figure) for wired communication connection with the first network switch 103 of the control box 1. A plurality of second supporting columns (not marked in the figure) are provided between the second network switch 204 and the bottom plate of the box 20, the first signal acquisition board 202 is installed on one side of the box 20, a plurality of second overhead columns (not marked in the figure) are provided between the first signal acquisition board 202 and the bottom plate of the box 20, the second signal acquisition board 203 is installed above the first signal acquisition board 202 and a plurality of second connecting columns (not marked in the figure) are provided between the two, the third temperature sensor is provided between the first signal acquisition board 202 and the second signal acquisition board 203, and the second temperature control board 205 is provided at intervals on the first signal acquisition board 202 and the second driving power supply 206 on the other side of the box 20, a plurality of second pillars (not marked in the figure) are arranged between the second temperature control board 205 and the bottom plate of the box 20, the second temperature control board 205 is electrically connected to a fourth temperature sensor (not shown in the figure) for monitoring the temperature in the middle of the box 20, and the fourth temperature sensor is arranged below the second temperature control board 205, and three second cooling fans 207 are arranged between two second bracket plates (not marked in the figure) on the front and rear sides and are arranged in front of the first signal acquisition board 202, the second temperature control board 205 and the second driving power supply 206 respectively. Handles (not marked in the figure) are arranged on both sides of the front plate of the box 20.

[0022] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A control box, comprising a chassis, air inlet holes and air outlet holes are arranged on both side panels of the chassis, a plurality of first signal connection terminals for electrically connecting to linkage devices are arranged on the rear panel of the chassis, the first signal connection terminals are electrically connected to a DO control board, and the characteristics are as follows: The DO control board is connected to the first network switch for wired communication, the first network switch is connected to the main control board for wired communication, the first network switch is connected to the touch screen installed on the front panel of the chassis for wired communication, the first network switch is connected to the first temperature control board for wired communication, the first temperature control board is electrically connected to a first temperature sensor for monitoring the temperature near the main control board, and the first temperature control board is electrically connected to a row of first cooling fans; the first network switch is installed on the inner side of the rear panel of the chassis, and the first network switch is provided with at least one first network interface on the rear panel of the chassis for wired communication connection with the second network switch of the signal expansion box.

2. A control box according to claim 1, characterized in that: The first temperature control board is electrically connected to the second temperature sensor; the main control board is installed on one side of the chassis, and a plurality of first overhead columns are provided between the main control board and the chassis bottom plate, the DO control board is installed above the main control board, and one end of the DO control board close to the first cooling fan protrudes from the main control board and is fixed to the chassis bottom plate through a column, a first connecting column is provided between the other end of the DO control board and the main control board, and the first temperature sensor is arranged between the main control board and the DO control board; the first temperature control board is arranged at intervals between the main control board and the first driving power supply on the other side of the chassis, a plurality of first pillars are provided between the first temperature control board and the chassis bottom plate, the second temperature sensor is arranged below the first temperature control board in the middle of the chassis, the first network switch is arranged behind the first temperature control board, and a plurality of first support columns are provided between the first network switch and the chassis bottom plate; the first cooling fan is mounted between the first bracket plates on the front and rear sides and are respectively arranged in front of the main control board, the first temperature control board and the first driving power supply.

3. A control box according to claim 2, characterized in that: It also includes a network connection board, which is installed on the inner side of the front panel of the chassis, and is connected to the main control panel by wired communication. The network connection board is provided with a USB interface opened on the front panel of the chassis for plugging in a memory.

4. A control box according to claim 2, characterized in that: The main control panel is provided with a VPN port.

5. A signal extension box, comprising a box body, air inlet holes and air outlet holes are arranged on the two side panels of the box body, and a plurality of second signal connection terminals for electrical connection with a monitoring device are arranged on the rear panel of the box body, characterized in that: The second signal connection terminal is electrically connected to the first signal acquisition board and the second signal acquisition board respectively, the first signal acquisition board and the second signal acquisition board are respectively connected to the second network switch installed on the inner side of the rear plate of the box body by wired communication, the second network switch is connected to the second temperature control board by wired communication, the second temperature control board is electrically connected to the third temperature sensor for monitoring the temperature of the signal acquisition board, and the second temperature control board is electrically connected to a row of second cooling fans; the second network switch is provided with a second network interface for wired communication connection with the first network switch of the control box.

6. A signal extension box according to claim 5, characterized in that: A plurality of second supporting columns are provided between the second network switch and the bottom plate of the box, the first signal acquisition board is installed on one side of the box, a plurality of second overhead columns are provided between the first signal acquisition board and the bottom plate of the box, the second signal acquisition board is installed above the first signal acquisition board and a plurality of second connecting columns are provided between the two, the third temperature sensor is provided between the first signal acquisition board and the second signal acquisition board, the second temperature control board is provided between the first signal acquisition board and the second driving power supply on the other side of the box, a plurality of second supporting columns are provided between the second temperature control board and the bottom plate of the box, the second temperature control board is electrically connected to a fourth temperature sensor for monitoring the temperature in the middle of the box, the fourth temperature sensor is provided under the second temperature control board, the second cooling fan is provided between the second bracket plates on the front and rear sides and are respectively arranged in front of the first signal acquisition board, the second temperature control board and the second driving power supply.

7. A controller based on a network architecture, characterized in that: The control box as claimed in claim 3 or 4 is connected to at least one signal extension box as claimed in claim 6 through wired communication.

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