CN215101300U

CN215101300U - Serial communication key device

Info

Publication number: CN215101300U
Application number: CN202121311416.7U
Authority: CN
Inventors: 周世杰; 赵岩
Original assignee: Jiangsu Welm Technology Co ltd
Current assignee: Jiangsu Welm Technology Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-12-10
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses a serial communication's button device, include: the serial communication key module, the serial key conversion module and the elevator system key module are connected in sequence. The utility model discloses well button has adopted serial communication, and every button all has own address, and elevator system data processing module can pass through serial communication bus and each button communication, has reduced communication cable quantity; the floor keys are cascaded layer by layer, so that the wiring difficulty is reduced, and the production efficiency is improved; the keys are connected with the serial key conversion module through a serial communication cable, the serial key conversion module key interfaces and the elevator system module key interfaces are connected in a flat cable one-to-one correspondence mode, wiring is concise, and later maintenance is facilitated.

Description

Serial communication key device

Technical Field

The utility model relates to a button device specifically is a serial communication's button device.

Background

The operating device in traditional elevator car is mostly mechanical button, and every button all will be connected to elevator system control module's button interface through the button winding displacement, and under the condition that the floor quantity is many, the quantity of the button winding displacement that corresponds is also many, and the electrical wiring degree of difficulty is big, and the equipment is long-consuming time.

The above-mentioned conventional mechanical key scheme has the following disadvantages:

a. when a product is assembled by the traditional mechanical key, the key of each floor, the key interface of an elevator system and a cable need to be confirmed one by one, so that the consumed working hours are long, and errors are easy to occur;

b. the cable is complex in electrical wiring, so that the cable is difficult to place and fix, and the reliability of electrical connection is influenced;

C. too much cable can influence the product pleasing to the eye, influences the degree of discernment of cable, increases the later maintenance degree of difficulty.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a serial communication's button device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a serial communication key device, comprising:

the serial communication key module, the serial key conversion module and the elevator system key module are connected in sequence;

the serial communication key module is used for detecting the trigger information of the switch and sending the trigger information to the serial key conversion module through a serial bus; meanwhile, receiving a floor registration state sent by the serial key conversion module, and determining whether to light an LED or not according to the state;

the serial key conversion module is used for receiving the trigger information and converting a serial key interface into a traditional key interface; meanwhile, receiving the floor registration state of the elevator system and sending the state to the corresponding serial communication key;

the elevator system key module is used for receiving key trigger information, and once the key is detected to be pressed down, the elevator system immediately registers the floor and outputs floor registration state information.

As a further aspect of the present invention, the serial communication key module comprises a plurality of key modules, the key modules comprise a power conversion module, a communication module, a first data processing module, a switch and an LED, the first data processing module is respectively connected to the power conversion module, the communication module, the switch and the LED, the other end of the communication module is respectively connected to two communication ports, and the other end of the power conversion module is respectively connected to two power ports and the other end of the LED; the communication ports of the plurality of key modules are connected in series in sequence.

As a further aspect of the present invention, the serial key conversion module includes a second data processing module, an interface expansion module and a plurality of key interfaces, the second data processing module is connected to the interface expansion module, and the interface expansion module is further connected to the plurality of key interfaces respectively.

As a further scheme of the utility model, elevator system button module includes third data processing module and a plurality of button interface, and a plurality of button interface are connected respectively to third data processing module.

As a further aspect of the present invention, one of the two free communication interfaces of the serial communication key module is connected to the second data processing module, the key interface in the serial key conversion module is connected to the key interface one-to-one in the key module of the elevator system.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses well button has adopted serial communication, and every button all has own address, and elevator system data processing module can pass through serial communication bus and each button communication, has reduced communication cable quantity; the floor keys are cascaded layer by layer, so that the wiring difficulty is reduced, and the production efficiency is improved; the keys are connected with the serial key conversion module through a serial communication cable, the serial key conversion module key interfaces and the elevator system module key interfaces are connected in a flat cable one-to-one correspondence mode, wiring is concise, and later maintenance is facilitated.

Drawings

Fig. 1 is a schematic circuit diagram of a key module in a serial communication key device.

Fig. 2 is a schematic circuit diagram of a serial communication key device.

FIG. 3 is a schematic diagram of an interface in a serial communication key device.

Fig. 4 is a circuit diagram of a power module in the serial communication key device.

Fig. 5 is a circuit diagram of an RS485 circuit for serial communication in the serial communication key device.

Fig. 6 is a circuit diagram of a single chip microcomputer adopted by a data processing module in the serial communication key device.

Fig. 7 is a circuit diagram of an LED in a serial communication key device.

Fig. 8 is a circuit diagram of a key in the serial communication key device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model provides an in, a serial communication's button device, include: the serial communication key module, the serial key conversion module and the elevator system key module are connected in sequence, as shown in fig. 2.

The serial communication key module is used for detecting the trigger information of the switch and sending the trigger information to the serial key conversion module through a serial bus; meanwhile, the floor registration state sent by the serial key conversion module is received, and whether the LED is lightened or not is determined according to the state.

The serial key conversion module is used for receiving the trigger information and converting a serial key interface into a traditional key interface; and meanwhile, receiving the floor registration state of the elevator system and sending the state to the corresponding serial communication key.

The serial communication key module comprises a plurality of key modules, the key modules are shown in figure 1 and comprise a power supply conversion module, a communication module, a first data processing module, a switch and an LED, the first data processing module is respectively connected with the power supply conversion module, the communication module, the switch and the LED, the other end of the communication module is respectively connected with two communication ports, and the other end of the power supply conversion module is respectively connected with the other ends of the two power ports and the LED. The communication ports of the plurality of key modules are connected in series in sequence.

The serial key conversion module comprises a second data processing module, an interface expansion module and a plurality of key interfaces, wherein the second data processing module is connected with the interface expansion module, and the interface expansion module is also respectively connected with the plurality of key interfaces.

The elevator system key module comprises a third data processing module and a plurality of key interfaces, and the third data processing module is respectively connected with the plurality of key interfaces. One of two free communication interfaces of the serial communication key module is connected to the second data processing module, and the key interfaces in the serial key conversion module are correspondingly connected with the key interfaces in the elevator system key module one by one.

Fig. 3 is a schematic diagram of an interface used in the device of the present invention, which employs an S4B-ZR-SM4A-TF type interface.

FIG. 4 is a circuit diagram of a power module used in the device of the present invention, which comprises a chip U (model number LMR14020 SDDAR), a diode D and a capacitor C, wherein pin 1 of the chip U is connected with the capacitor C, the other end of the capacitor C is connected with pin 8 of the chip U, the cathode of the diode D and an inductor L, the other end of the inductor L is connected with a resistor R, a capacitor C and a 3.3V power VDD, the other end of the capacitor C is connected with the other end of the capacitor C, the other end of the capacitor C and a resistor R, the other end of the resistor R is connected with the other end of the resistor R and pin 5 of the chip U, the anode of the diode D is connected with pin 7 of the chip U and the capacitor C and grounded, the other end of the capacitor C is connected with pin 6 of the chip U, pin 2 of the chip U is connected with the capacitor C, the resistor R and the inductor L, the other end of the inductor L is connected with one end of the 24V power and one end of the transient suppression diode D, the other end of the transient suppression diode D4 is connected with the other end of the capacitor C7, the resistor R8, the capacitor C8 and the resistor R7 respectively, the other end of the resistor R7 is connected with a pin 4 of a chip U3, and a pin 3 of the chip U3 is connected with the other end of the resistor R5, the other end of the resistor R8 and the other end of the capacitor C8 respectively.

The serial communication in the utility model adopts an RS485 serial communication module, as shown in figure 5; the data processing module of the utility model adopts a single chip microcomputer (model STC15W 201S) to control, as shown in figure 6; fig. 7 and 8 are a diagram of an LED and a key of the present invention, respectively.

To sum up, the utility model adopts serial communication, each button has its own address, and the elevator system data processing module can communicate with each button through the serial communication bus, thereby reducing the number of communication cables; the floor keys are cascaded layer by layer, so that the wiring difficulty is reduced, and the production efficiency is improved; the keys are connected with the serial key conversion module through a serial communication cable, the serial key conversion module key interfaces and the elevator system module key interfaces are connected in a flat cable one-to-one correspondence mode, wiring is concise, and later maintenance is facilitated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A serial communication key device, comprising:

2. The serial communication key device according to claim 1, wherein the serial communication key module comprises a plurality of key modules, the key modules comprise a power conversion module, a communication module, a first data processing module, a switch and an LED, the first data processing module is respectively connected with the power conversion module, the communication module, the switch and the LED, the other end of the communication module is respectively connected with two communication ports, and the other end of the power conversion module is respectively connected with two power ports and the other end of the LED;

the communication ports of the plurality of key modules are connected in series in sequence.

3. The serial communication key device of claim 2, wherein the serial key conversion module comprises a second data processing module, an interface expansion module and a plurality of key interfaces, the second data processing module is connected to the interface expansion module, and the interface expansion module is further connected to the plurality of key interfaces respectively.

4. The serial communication key device according to claim 3, wherein the elevator system key module comprises a third data processing module and a plurality of key interfaces, and the third data processing module is respectively connected with the plurality of key interfaces.

5. The serial communication key device according to claim 4, wherein one of the two free communication interfaces of the serial communication key module is connected to the second data processing module, and the key interfaces of the serial key conversion module are connected with the key interfaces of the elevator system key module in a one-to-one correspondence manner.