CN202443339U - Centralized-control type electric heating controller with 485 interface - Google Patents
Centralized-control type electric heating controller with 485 interface Download PDFInfo
- Publication number
- CN202443339U CN202443339U CN2012200122768U CN201220012276U CN202443339U CN 202443339 U CN202443339 U CN 202443339U CN 2012200122768 U CN2012200122768 U CN 2012200122768U CN 201220012276 U CN201220012276 U CN 201220012276U CN 202443339 U CN202443339 U CN 202443339U
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- circuit
- control
- centralized
- type electric
- electric heating
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Abstract
The utility model discloses a centralized-control type electric heating controller with a 485 interface. The centralized-control type electric heating controller comprises a control circuit, an RS485 interface circuit, a digital temperature sensor, a relay circuit and an electric heating mechanism, an input end of the control circuit is connected wit the digital temperature sensor, an output end of the control circuit is connected with the relay circuit, the relay circuit is connected to the electric heating mechanism, and the RS485 interface circuit is connected onto a serial port of the control circuit and an uplink control host. The centralized-control type electric heating controller is provided with the RS485 interface circuit, is long in transmission distance, has multi-station capacity, can meet the requirement of users on centralized control for electric heating at a low cost, is simple in structure, low in cost, fine in controllability and high in practicality, is applicable to various places needing centralized control for heating and heat insulation, and is particularly suitable for places, such as hospitals, kindergartens, nursing houses and low-temperature operation places, needing controlled heating of clothes, food and other articles.
Description
[technical field]
The utility model relates to the centralized-control type electric controller, more specifically says so and controls to realize the control device of heating automatically and insulation through up machine is concentrated.
[background technology]
There is following deficiency in the electric controller that generally adopts at present:
1, do not adopt the digital temperature sensor technology, the temperature signal precision is not high.
2, do not possess feedback control function, can not realize preservation and controlling.
3, do not adopt the microcontroller technology, controller is intelligent not strong.
4, the integrated control functions that does not have timing, heat-insulating integral.
For addressing the above problem, it is 201020144351.7 that the applicant has proposed the patent No., and name is called a kind of patented claim of intelligent electric controller; And in Granted publication on October 20th, 2010, this controller can overcome the deficiency of above-mentioned prior art, and providing a kind of is the basis with the embedded system technology; Have self-timing heating and preservation and controlling, control accuracy is higher, good reliability; Practical, simple in structure intelligent electric controller.
Though can realize self-timing heating and preservation and controlling through the intelligent electric controller after the applicant's improvement; But do not connect and managerial ability owing to do not possess network; And install LCD display additional, cost is higher, can not satisfy the low-cost demand of not having the demonstration centralized control system of user.
[utility model content]
The purpose of the utility model solves the problems of the prior art exactly, proposes a kind of centralized-control type electric controller that has 485 interfaces, can possess network and connect and managerial ability, and reduce cost.
For realizing above-mentioned purpose; The utility model provides a kind of centralized-control type electric controller that has 485 interfaces, comprise control circuit, RS485 interface circuit, digital temperature sensor, relay circuit and electrothermal mechanism, said control circuit input end is connected with digital temperature sensor; The control circuit output terminal is connected with relay circuit; Relay circuit is connected to electrothermal mechanism, is connected with the RS485 interface circuit on the serial port of control circuit, and the RS485 interface circuit is connected to the upload control main frame.
As preferably, said control circuit is to be made up of microcontroller, and is simple in structure, and cost is low.
As preferably, said microcontroller adopts the 80C51 chip, and circuit is simple, and cost is low.
As preferably, said digital temperature sensor is made up of the thermometric integrated circuit, and circuit is simple, and cost is low.
As preferably, said thermometric integrated circuit adopts the DS18B20 chip, and circuit is simple, and cost is low.
As preferably, said relay circuit is made up of triode and relay, and circuit is simple, and cost is low.
As preferably, said RS485 interface is made up of the RS485 integrated circuit, and circuit is simple, and cost is low.
The beneficial effect of the utility model: the utility model adopts the RS485 interface circuit, and transmission range is long, has the multistation ability; Can satisfy the demand that the user realizes the control of low-cost collection control electric heating, can accomplish the heating that is heated object and the control function of insulation, simple in structure; Cost is lower, and controllability is good, and is practical; Control accuracy is higher, and possesses network connection and managerial ability, is convenient to the low cost collection keyholed back plate reason that the user realizes networking; Be applicable to the multiple occasion that heat tracing centralized control demand is arranged, being particularly useful for hospital, kindergarten, the home for the aged, low temp operation etc. has the occasion of demand to controlling warm clothing, food and other article.
Characteristic of the utility model and advantage will combine accompanying drawing to be elaborated through embodiment.
[description of drawings]
Fig. 1 is a kind of theory diagram that has the centralized-control type electric controller of 485 interfaces of the utility model;
Fig. 2 is a kind of circuit theory diagrams that have the centralized-control type electric controller of 485 interfaces of the utility model.
[embodiment]
As shown in Figure 1; The centralized-control type electric controller that has 485 interfaces comprises control circuit 1, RS485 interface circuit 2, digital temperature sensor 3, relay circuit 4 and electrothermal mechanism 5, and said control circuit 1 input end is connected with digital temperature sensor 3; Control circuit 1 output terminal is connected with relay circuit 4; Relay circuit 4 is connected to electrothermal mechanism 5, is connected with RS485 interface circuit 2 on the serial port of control circuit 1, and RS485 interface circuit 2 is connected to the upload control main frame.The key distinction of this centralized-control type electric controller and intelligent electric controller is: intelligent electric controller is that each chip itself has control function separately; And the centralized-control type electric controller is by the unified control of up machine; It is just passable that each controller only need be carried out dependent instruction; And each controller does not need to establish separately display, not only controls convenient, fastly, and has reduced cost.
As shown in Figure 2; The input end that control circuit 1 is connected with digital temperature sensor 3DS18B20 chip through its microcontroller 80C51 chip; Read in the temperature information that is heated object, determine whether to heat or stop heating operation according to the program of microcontroller inside; Digital temperature sensor 3DS18B20 accepts the signal from hygrosensor spare, converts numerical information to, sends microcontroller to; When temperature is lower than setting value, microcontroller is in the automatic heat preserving state, then directly carries out heating operation; When temperature is lower than setting value, microcontroller is in regularly heated condition, then need wait for and carry out heating operation when timing condition possesses; When temperature is higher than setting value, microcontroller stops heating operation control; The switch of relay is used to control the on/off of electrothermal mechanism 5, realizes the work of electrical heating operation or stops; The control that microcontroller 80C51 accomplishes heating automatically and stops to heat the switching manipulation of relay circuit 4 through I/O mouth P1.0, thus realize heating automatically and the control function that is incubated.Control circuit 1 is connected to the upload control main frame through the RS485 interface, can accept the external command information of upload control main frame, carries out corresponding information management.Adopt single power supply Vcc, direct current+5V in the utility model.
The foregoing description is the explanation to the utility model, is not the qualification to the utility model, any protection domain that scheme after the utility model simple transformation is all belonged to the utility model.
Claims (7)
1. centralized-control type electric controller that has 485 interfaces; It is characterized in that: comprise control circuit, RS485 interface circuit, digital temperature sensor, relay circuit and electrothermal mechanism; Said control circuit input end is connected with digital temperature sensor, and the control circuit output terminal is connected with relay circuit, and relay circuit is connected to electrothermal mechanism; Be connected with the RS485 interface circuit on the serial port of control circuit, the RS485 interface circuit is connected to the upload control main frame.
2. a kind of centralized-control type electric controller that has 485 interfaces as claimed in claim 1, it is characterized in that: said control circuit is to be made up of microcontroller.
3. a kind of centralized-control type electric controller that has 485 interfaces as claimed in claim 2 is characterized in that: said microcontroller adopts the 80C51 chip.
4. a kind of centralized-control type electric controller that has 485 interfaces as claimed in claim 1, it is characterized in that: said digital temperature sensor is made up of the thermometric integrated circuit.
5. a kind of centralized-control type electric controller that has 485 interfaces as claimed in claim 4 is characterized in that: said thermometric integrated circuit adopts the DS18B20 chip.
6. a kind of centralized-control type electric controller that has 485 interfaces as claimed in claim 1, it is characterized in that: said relay circuit is made up of triode and relay.
7. like each described a kind of centralized-control type electric controller that has 485 interfaces in the claim 1～6, it is characterized in that: said RS485 interface is made up of the RS485 integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200122768U CN202443339U (en) | 2012-01-12 | 2012-01-12 | Centralized-control type electric heating controller with 485 interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200122768U CN202443339U (en) | 2012-01-12 | 2012-01-12 | Centralized-control type electric heating controller with 485 interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202443339U true CN202443339U (en) | 2012-09-19 |
Family
ID=46824782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200122768U Expired - Fee Related CN202443339U (en) | 2012-01-12 | 2012-01-12 | Centralized-control type electric heating controller with 485 interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202443339U (en) |
-
2012
- 2012-01-12 CN CN2012200122768U patent/CN202443339U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20130112 |