Measurement and control display screen equipment with bus interface and wireless transmission function

Abstract

The utility model relates to measurement and control display screen equipment with a bus interface and a wireless transmission function. An existing device with a display screen is single in transmission interface, a plurality of screens need to be arranged on a plurality of device occasions, investment cost is high, and checking is inconvenient. The device comprises a housing, a circuit board, a touch display screen, a signal interface, an antenna and the like. The side surface of the housing is provided with a separator plate and a combined installation hole. A clamping groove and a circuit board are arranged in the box body, a terminal wiring panel is arranged at the rear part, and a display screen panel and a touch display screen are arranged at the front part; a DC 5.5 female seat, a Type c interface, a LoRa communication indicating lamp, an antenna pedestal, an RS-485 communication indicating lamp and an RS-485 wiring terminal are exposed at the terminal wiring panel, and an antenna is fixed on the antenna pedestal. Meanwhile, a bus interface and a wireless transmission function are provided, flexible combination can be achieved, and conversion between wired transmission and wireless transmission can be achieved; and a plurality of devices with the same shell structure can be conveniently combined for use, the operation is simple, the installation is convenient, and the popularization is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a measurement and control display screen device with a bus interface and a wireless transmission function. Background Art

[0002] With the rapid development of industrial measurement and control, some traditional industrial equipment is not highly intelligent. Users often need to observe the working status of each device in real time on site, and many devices do not have display screens. Some traditional display screens on the market have a single transmission interface, which is difficult to match with the interface of industrial equipment. Traditional display screens all use wired transmission for data transmission, and wiring is extremely inconvenient in many applications. Traditional display screens can only connect to one device at a time, and multiple screens need to be deployed in multiple equipment locations, which increases user investment costs and makes it extremely inconvenient for users to view too many screens. Utility Model Content

[0003] The purpose of the utility model is to provide a measurement and control display screen device with bus interface and wireless transmission function. When wired data is transmitted, the RS-485 bus interface, which is very common in the industrial field, is adopted, which matches various industrial equipment to a great extent, and can realize the connection of multiple devices on a set of communication lines. In occasions with more equipment, only one display screen needs to be arranged, which greatly reduces the user's investment cost and improves the convenience of viewing information; when wireless data transmission is performed, the LoRa communication technology with low power consumption and long distance is adopted to reduce the user's wiring cost and convenience; it can be flexibly combined, such as being combined with a voltage measuring device into a voltmeter; it can be combined with a temperature measuring device into a temperature meter; it can also realize the mutual conversion between RS-485 bus data transmission and LoRa wireless data transmission; it can be convenient to combine multiple devices with the same shell structure for use.

[0004] The utility model includes a shell, a circuit board A, a circuit board B, a display panel, a touch display, an RS-485 terminal, a DC5.5 female socket, a Type C interface, a LoRa communication indicator light, an RS-485 communication indicator light, and an antenna seat. The shell is a square body, and grooves are arranged longitudinally from the top to the bottom in the middle of both sides of the shell. Partitions and combined mounting holes are arranged at the grooves below the side of the shell, so that multiple combined devices with the same shell structure can be assembled with connecting rods. Card slots are arranged on the upper sides of the shell, and the circuit board A is inserted in the card slots. The circuit board A is provided with a DC5.5 female socket, a Type c interface, LoRa communication indicator light, antenna seat, RS-485 communication indicator light, RS-485 wiring terminals; a terminal wiring panel is arranged at the rear of the shell, and a display panel is arranged at the front of the shell; a display fixing hole is arranged in the middle of the display panel, and the display fixing hole is a square hole with a sunken step, and the touch display screen is adhesively fixed at the display fixing hole; a circuit board B fixing column is arranged on the back of the display panel, and the circuit board B is fixed by the circuit board B fixing screws; the terminal wiring panel is fixed to the back of the shell by the panel fixing screws, and an opening is arranged on the terminal wiring panel, revealing a DC5.5 female socket, Type c interface, LoRa communication indicator light, antenna seat, RS-485 communication indicator light, RS-485 wiring terminals, and the antenna is fixed on the antenna seat.

[0005] The functions and working principles of each component and circuit in the utility model circuit are:

[0006] RS-485 communication terminal: used to connect external RS-485 communication cable;

[0007] Signal isolation circuit: responsible for isolating the RS-485 bus signal from the data on the mainboard to reduce interference;

[0008] RS-485 transceiver circuit: responsible for receiving and sending RS-485 signals;

[0009] DC5.5 female socket: used to connect an external power supply to power this device;

[0010] Power protection circuit: responsible for protecting the mainboard circuit from overload;

[0011] Power isolation circuit: used to isolate the RS-485 bus power supply from the mainboard power supply to reduce interference;

[0012] Power supply voltage regulator circuit: responsible for stabilizing the input voltage to the appropriate voltage required for the microcontroller to work;

[0013] USB interface: used for USB signal transmission;

[0014] LED indicator: used to indicate various status of the device;

[0015] LoRa antenna base: used to connect an external LoRa antenna to increase the strength of the receiving and transmitting signals;

[0016] LoRa module circuit: responsible for wireless connection between devices, receiving and sending wireless signals;

[0017] Cable interface 1: used to connect circuit board B;

[0018] Cable interface 2: used to connect circuit board A;

[0019] Single chip microcomputer: responsible for data processing of each circuit module, such as transmitting the received data to the LCD screen drive circuit after processing;

[0020] RTC clock circuit: used to provide real-time clock for the microcontroller;

[0021] Internal temperature monitoring circuit: responsible for detecting the internal temperature of the device shell;

[0022] Buzzer circuit: used for alarm, alarm sounds when data is abnormal;

[0023] Flash storage circuit: responsible for storing device information, related data, etc.;

[0024] LCD touch screen: used to display data information and touch operation buttons;

[0025] LCD screen driving circuit: responsible for driving the LCD touch screen.

[0026] The advantages of this new model are that it has both bus interface and wireless transmission functions. When wired data is transmitted, it can match various industrial equipment to a great extent, and can connect multiple devices on a set of communication lines. In occasions with many devices, only one display screen is needed, which greatly reduces the user's investment cost and improves the convenience of viewing information; when wireless data is transmitted, it reduces the user's wiring cost and convenience; it can be flexibly combined, and can also realize the conversion between wired and wireless transmission; it can conveniently combine multiple devices with the same shell structure. It is simple to operate, easy to install, and conducive to promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the structure of the components of the utility model in an exploded state;

[0029] Figure 3 This is a schematic diagram of the structure of the utility model in a top view;

[0030] Figure 4 It is a rear view structural schematic diagram of the utility model;

[0031] Figure 5 It is a schematic diagram of the overall structure of the back of the utility model;

[0032] Figure 6 It is a schematic block diagram of the circuit principle of the utility model.

[0033] In the figure, 1 is the shell, 2 is the card slot, 3 is the groove, 4 is the partition and the combined mounting hole, 5 is the circuit board A, 6 is the circuit board B, 7 is the terminal wiring panel, 8 is the display panel, 9 is the display fixing hole, 10 is the touch display, 11 is the DC5.5 female socket, 12 is the Type C interface, 13 is the LoRa communication indicator light, 14 is the antenna seat, 15 is the RS-485 communication indicator light, 16 is the RS-485 terminal, 17 is the antenna, 18 is the circuit board B fixing column, 19 is the circuit board B fixing screw, and 20 is the panel fixing screw. DETAILED DESCRIPTION

[0034] The present invention is further described in detail with reference to the following preferred embodiments in conjunction with the accompanying drawings:

[0035] The utility model comprises a shell (1), a circuit board A (5), a circuit board B (6), a display panel (8), a touch display (10), an RS-485 terminal (16), a DC5.5 female socket (11), a Type C interface (12), a LoRa communication indicator light (13), an RS-485 communication indicator light (15), and an antenna seat (14). The shell (1) is a square body, and grooves (3) are respectively arranged in the middle of two sides thereof from the top to the bottom longitudinally. The grooves (3) at the bottom of the side of the shell (1) are provided with partitions and combined mounting holes (4), so as to facilitate the assembly of multiple combined devices with the same shell structure by connecting rods. Card slots (2) are arranged at the upper sides of the inside of the shell (1), and the circuit board A (5) is inserted in the card slots (2). The circuit board A (5) is provided with a DC5.5 female socket (11), a Type C interface (12), and a DC5.5 female socket (11), a Type C interface (13), and a LoRa communication indicator light (15). c interface (12), LoRa communication indicator light (13), antenna seat (14), RS-485 communication indicator light (15), RS-485 connection terminal (16); a terminal connection panel (7) is arranged at the rear of the housing (1), and a display panel (8) is arranged at the front of the housing (1); a display fixing hole (9) is arranged in the middle of the display panel (8), and the display fixing hole (9) is a square hole with a sunken step, and the touch display screen (10) is adhesively fixed at the display fixing hole (9); a circuit board B fixing column (18) is arranged on the back of the display panel (8), and the circuit board B (6) is fixed by the circuit board B fixing screw (19); the terminal connection panel (7) is fixed to the rear of the housing (1) by the panel fixing screw (20), and an opening is arranged on the terminal connection panel (7), revealing the DC5.5 female socket (11), Type c interface (12), LoRa communication indicator light (13), antenna base (14), RS-485 communication indicator light (15), RS-485 connection terminal (16), and antenna (17) are fixed on the antenna base (14).

[0036] The functions and working principles of each component and circuit in the utility model circuit are:

[0037] RS-485 communication terminal: used to connect external RS-485 communication cable;

[0038] Signal isolation circuit: responsible for isolating the RS-485 bus signal from the data on the mainboard to reduce interference;

[0039] RS-485 transceiver circuit: responsible for receiving and sending RS-485 signals;

[0040] DC5.5 female socket: used to connect an external power supply to power this device;

[0041] Power protection circuit: responsible for protecting the mainboard circuit from overload;

[0042] Power isolation circuit: used to isolate the RS-485 bus power supply from the mainboard power supply to reduce interference;

[0043] Power supply voltage regulator circuit: responsible for stabilizing the input voltage to the appropriate voltage required for the microcontroller to work;

[0044] USB interface: used for USB signal transmission;

[0045] LED indicator: used to indicate various status of the device;

[0046] LoRa antenna base: used to connect an external LoRa antenna to increase the strength of the receiving and transmitting signals;

[0047] LoRa module circuit: responsible for wireless connection between devices, receiving and sending wireless signals;

[0048] Cable interface 1: used to connect circuit board B;

[0049] Cable interface 2: used to connect circuit board A;

[0050] Single chip microcomputer: responsible for data processing of each circuit module, such as transmitting the received data to the LCD screen drive circuit after processing;

[0051] RTC clock circuit: used to provide real-time clock for the microcontroller;

[0052] Internal temperature monitoring circuit: responsible for detecting the internal temperature of the device shell;

[0053] Buzzer circuit: used for alarm, alarm sounds when data is abnormal;

[0054] Flash storage circuit: responsible for storing device information, related data, etc.;

[0055] LCD touch screen: used to display data information and touch operation buttons;

[0056] LCD screen driving circuit: responsible for driving the LCD touch screen.

Claims

1. A measurement and control display screen device with bus interface and wireless transmission function, characterized in that It comprises a shell (1), a circuit board A (5), a circuit board B (6), a display panel (8), a touch display (10), an RS-485 terminal (16), a DC5.5 female socket (11), a Type C interface (12), a LoRa communication indicator light (13), an RS-485 communication indicator light (15), and an antenna seat (14). The shell (1) is a square body, and grooves (3) are arranged longitudinally from the top to the bottom in the middle of both sides of the shell (1). The grooves (3) at the bottom of the side of the shell (1) are provided with partitions and combined mounting holes (4), so as to facilitate the assembly of multiple combined devices with the same shell structure using connecting rods. Card slots (2) are arranged on the upper sides of the shell (1), and the circuit board A (5) is inserted in the card slots (2). The circuit board A (5) is provided with a DC5.5 female socket (11), a Type c interface (12), LoRa communication indicator light (13), antenna seat (14), RS-485 communication indicator light (15), RS-485 connection terminal (16); a terminal connection panel (7) is arranged at the rear of the housing (1), and a display panel (8) is arranged at the front of the housing (1); a display fixing hole (9) is arranged in the middle of the display panel (8), and the display fixing hole (9) is a square hole with a sunken step, and the touch display screen (10) is adhesively fixed at the display fixing hole (9); a circuit board B fixing column (18) is arranged on the back of the display panel (8), and the circuit board B (6) is fixed by the circuit board B fixing screw (19); the terminal connection panel (7) is fixed to the rear of the housing (1) by the panel fixing screw (20), and an opening is arranged on the terminal connection panel (7), revealing the DC5.5 female socket (11), Type c interface (12), LoRa communication indicator light (13), antenna base (14), RS-485 communication indicator light (15), RS-485 connection terminal (16), and antenna (17) are fixed on the antenna base (14).

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