CN211015124U

CN211015124U - Internet of things P L C remote monitoring system

Info

Publication number: CN211015124U
Application number: CN201922177266.4U
Authority: CN
Inventors: 莫小娜
Original assignee: Guangdong Emart Communication Technology Co ltd
Current assignee: Guangdong Emart Communication Technology Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-07-14
Anticipated expiration: 2029-12-05

Abstract

The utility model relates to a P L C control field discloses an thing networking P L C remote monitering system, including P L C controller, wireless communication module, the HMI module, the relay, power module and remote terminal, the relay is connected with P L C controller, power module is connected with P L C controller, P L C controller passes through wireless communication module and is connected with HMI module and remote terminal respectively, power module includes voltage input end, first fuse, the transformer, first diode, the second diode, first electric capacity, first resistance, the second potentiometre, the third resistance, first triode, the fourth resistance, the second triode, the third diode, the third triode, second electric capacity and voltage output end, voltage input end's one end is connected with the one end of first fuse.

Description

Internet of things P L C remote monitoring system

Technical Field

The utility model relates to a P L C control field, in particular to thing networking P L C remote monitering system.

Background

With the rapid development of the industrial internet of things and the high-speed application of the internet, information transmission is faster, more stable and more reliable, a remote fault diagnosis and monitoring system of equipment is realized through a real-time transmission technology of a wireless network, the limitation of regions and time can be broken, the timeliness of fault elimination is improved, the after-sale cost is reduced, a manufacturing enterprise can effectively, comprehensively and timely master original data of the actual operation condition of the equipment, and the remote fault diagnosis and monitoring system has significance for optimizing and improving the equipment and developing new products.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a circuit structure comparatively simple, the cost is lower, the security of convenient maintenance, circuit and the higher thing networking P L C remote monitering system of reliability.

The utility model provides a technical scheme that its technical problem adopted is that construct an thing networking P L C remote monitering system, including P L C controller, wireless communication module, HMI module, relay, power module and remote terminal, the relay with P L C controller is connected, power module with P L C controller is connected, P L C controller pass through wireless communication module respectively with HMI module and remote terminal are connected;

the power supply module comprises a voltage input end, a first fuse, a transformer, a first diode, a second diode, a first capacitor, a first resistor, a second potentiometer, a third resistor, a first triode, a fourth resistor, a second triode, a third diode, a third triode, a second capacitor and a voltage output end, wherein one end of the voltage input end is connected with one end of the first fuse, the other end of the fuse is connected with one end of a primary coil of the transformer, the other end of the voltage input end is connected with the other end of the primary coil of the transformer, one end of a secondary coil of the transformer is connected with an anode of the first diode, a cathode of the first diode is respectively connected with a cathode of the second diode, one end of the first resistor and a collector of the first triode, and the other end of a secondary coil of the transformer is connected with an anode of the second diode, the other end of first resistance respectively with a stiff end of second potentiometre the slip end of second potentiometre the base of first triode the one end of fourth resistance with the projecting pole of third triode is connected, another stiff end of second potentiometre respectively with the one end of third resistance with the base of second triode is connected, the other end of fourth resistance respectively with the collecting electrode of second triode with the base of third triode is connected, the projecting pole of first triode with the positive pole of third diode is connected, the negative pole of third diode respectively with the one end of second electric capacity and the one end of voltage output end are connected, the intermediate node of the secondary coil of transformer respectively with the other end of first electric capacity, the other end of third resistance the projecting pole of second triode, And the collector of the third triode and the other end of the second capacitor are connected with the other end of the voltage output end.

In the internet of things P L C remote monitoring system of the present invention, the model of the third diode is S-202T.

Thing networking P L C remote monitering system in, power module still includes fifth resistance, the one end of fifth resistance with the projecting pole of second triode is connected, the other end of fifth resistance with the other end of third resistance is connected.

The thing networking P L C remote monitering system in, the resistance of fifth resistance is 43k omega.

The thing networking P L C remote monitering system in, first triode is NPN type triode.

The thing networking P L C remote monitering system in, the second triode is NPN type triode.

Thing networking P L C remote monitering system in, the third triode is PNP type triode.

Thing networking P L C remote monitering system in, wireless communication module is in 5G communication module, 4G communication module, bluetooth module, wiFi module, GSM module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module and L oRa module arbitrary one or arbitrary several kinds of combinations.

Implement the utility model discloses a thing networking P L C remote monitering system, following beneficial effect has, owing to be equipped with the P L C controller, wireless communication module, the HMI module, the relay, power module and remote terminal, power module includes voltage input end, first fuse, the transformer, first diode, the second diode, first electric capacity, first resistance, the second potentiometre, the third resistance, first triode, the fourth resistance, the second triode, the third diode, the third triode, second electric capacity and voltage output end, this power module compares with traditional P L C remote monitering system's power supply part, its components and parts that use are less, owing to saved some components and parts, can reduce the hardware cost like this, in addition, the third diode is used for carrying out current-limiting protection, therefore circuit structure is comparatively simple, the cost is lower, convenient maintenance, the security and the reliability of circuit are higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic circuit diagram of the power supply portion of a conventional P L C remote monitoring system;

fig. 2 is a schematic structural diagram of an embodiment of the internet of things P L C remote monitoring system of the present invention;

fig. 3 is a schematic circuit diagram of the power supply module in the embodiment.

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 utility model discloses thing networking P L C remote monitering system embodiment, this thing networking P L C remote monitering system's schematic structure is shown in FIG. 2, this thing networking P L C remote monitering system includes P L C controller 1, wireless communication module 2, HMI module 3, relay 4, power module 5 and remote terminal 6, wherein, relay 4 is connected with P L C controller 1, power module 5 is connected with P L C controller 1, P L C controller 1 passes through wireless communication module 2 and is connected with HMI module block 3 and remote terminal 6 respectively.

The HMI module 3 adopts a touch screen for data input and display, for example, a touch screen with model AK-070AS can be adopted, the P L C controller 1 is used for automatic real-time control, a programmable logic controller with model FX-3U can be adopted, and the remote terminal 6 is used for acquiring management data of the wireless communication module 2.

After a user opens remote client software on a mobile phone or a PC of the remote terminal 6 to establish network connection with the wireless communication module 2, the user can acquire data of the wireless communication module 2, or control the wireless communication module 2 to send a command to the P L C controller 1 to control the action of the P L C controller 1, when the wireless communication module 2 sends the command to the P L C controller 1, the user can control the P L C controller 1 to act, and when the wireless communication module 2 transmits information to the HMI module 3, the information can be displayed on the HMI module 3.

In this embodiment, the wireless communication module 2 is any one or a combination of any several of a 5G communication module, a 4G communication module, a bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, and a L oRa module, and by providing a plurality of wireless communication methods, it is possible to increase the flexibility of the wireless communication method and meet the requirements of different users and different occasions.

In this embodiment, the P L C controller 1, the HMI module 3, the relay 4, and the remote terminal 6 are all implemented by using a structure in the prior art, and the working principle thereof is also the working principle in the prior art, which is not described in detail herein.

Fig. 3 is a schematic circuit diagram of a power supply module in this embodiment, in fig. 3, the power supply module 5 includes a voltage input terminal Vin, a first fuse F1, a transformer T, a first diode D1, a second diode D2, a first capacitor C1, a first resistor R1, a second potentiometer RP2, a third resistor R3, a first transistor Q1, a fourth resistor R4, a second transistor Q2, a third diode D3, a third transistor Q3, a second capacitor C2, and a voltage output terminal Vo, wherein one end of the voltage input terminal Vin is connected to one end of the first fuse F1, the other end of the fuse F1 is connected to one end of a primary winding of the transformer T, the other end of the voltage input terminal is connected to the other end of the primary winding of the transformer T, one end of a secondary winding of the transformer T is connected to an anode of the first diode D1, and a cathode of the first diode D1 is connected to a cathode of the second diode D2, respectively, One end of a first resistor R1 is connected with a collector of a first triode Q1, the other end of a secondary coil of a transformer T is connected with an anode of a second diode D2, the other end of the first resistor R1 is respectively connected with a fixed end of a second potentiometer RP2, a sliding end of a second potentiometer RP2, a base of a first triode Q1, one end of a fourth resistor R4 and an emitter of a third triode Q3, the other fixed end of the second potentiometer RP2 is respectively connected with one end of a third resistor R3 and a base of a second triode Q2, the other end of the fourth resistor R4 is respectively connected with a collector of the second triode Q2 and a base of the third triode Q3, an emitter of the first triode Q1 is connected with an anode of a third diode D3, a cathode of the third diode D3 is respectively connected with one end of a second capacitor C2 and one end of a voltage Vo output end, and an intermediate node of the secondary coil of the transformer T is respectively connected with a middle node 1 of the other end of a first capacitor C1, The other end of the third resistor R3, the emitter of the second triode Q2, the collector of the third triode Q3, the other end of the second capacitor C2 and the other end of the voltage output end Vo are connected.

Compared with the power supply part of the conventional P L C remote monitoring system in fig. 1, the power supply module 5 has fewer used components, a simpler circuit structure, and convenience in maintenance, and can reduce hardware cost due to the fact that some components are saved, in addition, the third diode D3 is a current limiting diode and is used for performing current limiting protection on the emitter current of the first triode Q1, the current limiting protection has the following principle that when the emitter current of the first triode Q1 is larger, the size of the emitter current of the first triode Q1 can be reduced through the third diode D3, so that the normal working state is maintained, and the components in the circuit cannot be burnt out due to too large current, so that the safety and reliability of the circuit are higher, and the technical effect better than that of the conventional technology is achieved through fewer components.

In this embodiment, the rated power of the transformer T is 100W, the electrolytic capacitor of 3200uF/33V is selected as the first capacitor C1, the monolithic capacitor of 0.1uF is selected as the second capacitor C2, the resistance of the first resistor R1 is 220 Ω, the resistances of the third resistor R3 and the fourth resistor R4 are both 10k Ω, and the adjustment range of the output voltage of the voltage output terminal Vo is 3.5V to 25V.

In this embodiment, the first transistor Q1 is an NPN transistor, the second transistor Q2 is an NPN transistor, and the third transistor Q3 is a PNP transistor. Certainly, in practical applications, the first transistor Q1 and the second transistor Q2 may both be PNP transistors, and the third transistor Q3 may also be NPN transistors, but the circuit structure is also changed accordingly.

In this embodiment, the power supply module 5 further includes a fifth resistor R5, one end of the fifth resistor R5 is connected to the emitter of the second transistor Q2, and the other end of the fifth resistor R5 is connected to the other end of the third resistor R3. The fifth resistor R5 is a current limiting resistor, and is used for current limiting protection of the emitter current of the second transistor Q2. The current limiting protection principle is as follows: when the emitter current of the second triode Q2 is large, the emitter current of the second triode Q2 can be reduced by the fifth resistor R5 to keep the second triode Q2 in a normal working state, so that the elements in the circuit are not burnt out due to the large current, and the safety and reliability of the circuit are further enhanced. It should be noted that, in the present embodiment, the resistance of the fifth resistor R5 is 43k Ω. Of course, in practical applications, the resistance of the fifth resistor R5 may be adjusted accordingly, that is, the resistance of the fifth resistor R5 may be increased or decreased accordingly.

In summary, in this embodiment, compared with the power supply part of the conventional P L C remote monitoring system, the power supply module 5 has fewer components, a simpler circuit structure, and convenience in maintenance, and can reduce hardware cost due to the fact that some components are saved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The Internet of things P L C remote monitoring system is characterized by comprising a P L C controller, a wireless communication module, an HMI module, a relay, a power supply module and a remote terminal, wherein the relay is connected with the P L C controller, the power supply module is connected with the P L C controller, and the P L C controller is respectively connected with the HMI module and the remote terminal through the wireless communication module;

2. The internet of things P L C remote monitoring system according to claim 1, wherein the third diode is S-202T type.

3. The internet of things P L C remote monitoring system according to claim 2, wherein the power supply module further comprises a fifth resistor, one end of the fifth resistor is connected to the emitter of the second triode, and the other end of the fifth resistor is connected to the other end of the third resistor.

4. The Internet of things P L C remote monitoring system according to claim 3, wherein the resistance of the fifth resistor is 43k Ω.

5. The Internet of things P L C remote monitoring system according to any one of claims 1-4, wherein the first triode is an NPN triode.

6. The Internet of things P L C remote monitoring system according to any one of claims 1-4, wherein the second triode is an NPN triode.

7. The Internet of things P L C remote monitoring system according to any one of claims 1-4, wherein the third triode is a PNP triode.

8. The Internet of things P L C remote monitoring system according to any one of claims 1-4, wherein the wireless communication module is any one or a combination of any several of a 5G communication module, a 4G communication module, a Bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module and a L oRa module.