CN203965050U - A kind of temperature collecting device - Google Patents
A kind of temperature collecting device Download PDFInfo
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- CN203965050U CN203965050U CN201420279907.1U CN201420279907U CN203965050U CN 203965050 U CN203965050 U CN 203965050U CN 201420279907 U CN201420279907 U CN 201420279907U CN 203965050 U CN203965050 U CN 203965050U
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- controlling unit
- temperature
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- communicating circuit
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Abstract
The utility model belongs to electric and electronic technical field, a kind of temperature collecting device, mainly comprise first, two ... n485 communicating circuit, described first, two ... n485 communicating circuit by PORT COM P1.1 and P1.2 respectively with first, two ... n Single-chip Controlling unit connects, described first, two ... n Single-chip Controlling unit is by I/O mouth P1.3, P1.4, P1.5, P2.0 and P2.1 respectively with 1-1, 1-2, 1-3, 1-4, 1-5, 2-1, 2-2, 2-3, 2-4, 2-5 ... n-1, n-2, n-3, n-4, n-5 temperature probe circuit connects, described first, two ... n485 communicating circuit is connected with 485 communication buses respectively.The utlity model has the function of multiplex temperature collection, only need simple communication just can obtain temperature data; The position of measuring is flexible, can be easily fixed to and much be difficult for the place that measures; In addition, not affecting under the prerequisite of normal communication in shared 485 connections of original system, multiple temperature collecting devices are articulated in 485 communication buses, do not interfere with each other, drop to minimum on the impact of other parts of system.
Description
Technical field
The utility model relates to a kind of temperature collecting device, belongs to electric and electronic technical field.
Background technology
At present, in the time needing in sampling system to carry out temperature acquisition, generally can adopt DS18B20 sensor, it has, and circuit is simple, the advantage of working stability, saving controller IO mouth.But when a system, especially sharing the multi-module system of 485 communication buses or needing sensing range to distribute in larger system, in the time of needs collecting temperature data, if just use DS18B20 sensor can bring much inconvenience.And if needing the temperature position of measuring while changing, the movement of sensor is also cumbersome, and can exert an influence to other part in system.
Summary of the invention
The deficiency existing in order to overcome prior art, the utility model object is to provide a kind of temperature collecting device.This device has the function of multiplex temperature collection, and has overcome existing direct use DS18B20 sensor and can not realize the deficiency of remote temperature measurement.In addition, this device can, not affecting under the prerequisite of normal communication in shared 485 connections of original system, be articulated in multiple temperature collecting devices in 485 communication buses, does not interfere with each other, and the variation of temperature measuring positions is dropped to minimum on the impact of other parts of system.
In order to realize foregoing invention object, solve existing problem in prior art, the technical scheme that the utility model is taked is: a kind of temperature collecting device, mainly comprise first, two ... n485 communicating circuit, described first, two ... n485 communicating circuit by PORT COM P1.1 and P1.2 respectively with first, two ... n Single-chip Controlling unit connects, described first, two ... n Single-chip Controlling unit is by I/O mouth P1.3, P1.4, P1.5, P2.0 and P2.1 respectively with 1-1, 1-2, 1-3, 1-4, 1-5, 2-1, 2-2, 2-3, 2-4, 2-5 ... n-1, n-2, n-3, n-4, n-5 temperature probe circuit connects, described first, two ... n485 communicating circuit is connected with 485 communication buses respectively.
Described temperature probe circuit comprises DS18B20 temperature sensor, electric capacity of voltage regulation C4 and pull-up resistor R4, wherein: described DS18B20 temperature sensor pin 1 ground connection, pin 2 one tunnels are connected, separately lead up to the I/O mouth of single-chip microcomputer, and pull-up resistor R4 is connected with pin 3, described pin 3 is connected and passes through electric capacity of voltage regulation C4 ground connection with power supply VCC is anodal.
Described 485 communicating circuits mainly comprise MAX3485 module, wherein: described MAX3485 module pin 1 is connected with P1.2 with the PORT COM P1.1 of Single-chip Controlling unit respectively with pin 4, pin 5 ground connection, pin 1, 2 and 4 respectively with pull-up resistor R13, one end of R12 and R11 is connected, pull-up resistor R13, the other end of R12 and R11 is connected with power supply VCC is anodal after being connected again, pin 2 is connected with 3 short circuits and with the I/O port P1.0 of Single-chip Controlling unit, pin 8 is connected and passes through electric capacity of voltage regulation C16 ground connection with power supply VCC is anodal, between pin 6 and 7, also connecting resistance R14 is also connected with 485 communication buses by terminal J12.
The utility model beneficial effect is: a kind of temperature collecting device, mainly comprise first, two ... n485 communicating circuit, described first, two ... n485 communicating circuit by PORT COM P1.1 and P1.2 respectively with first, two ... n Single-chip Controlling unit connects, described first, two ... n Single-chip Controlling unit is by I/O mouth P1.3, P1.4, P1.5, P2.0 and P2.1 respectively with 1-1, 1-2, 1-3, 1-4, 1-5, 2-1, 2-2, 2-3, 2-4, 2-5 ... n-1, n-2, n-3, n-4, n-5 temperature probe circuit connects, described first, two ... n485 communicating circuit is connected with 485 communication buses respectively.Compared with the prior art, the utlity model has the function of multiplex temperature collection, only need simple communication just can obtain temperature data; The position of measuring is flexible, can be easily fixed to and much be difficult for the place that measures; In addition, not affecting under the prerequisite of normal communication in shared 485 connections of original system, multiple temperature collecting devices are articulated in 485 communication buses, do not interfere with each other, drop to minimum on the impact of other parts of system.
Brief description of the drawings
Fig. 1 is the utility model structural representation block diagram.
Fig. 2 is the temperature probe circuit theory diagrams in the utility model.
Fig. 3 is 485 communicating circuit schematic diagrams in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of temperature collecting device, mainly comprise first, two ... n485 communicating circuit, described first, two ... n485 communicating circuit by PORT COM P1.1 and P1.2 respectively with first, two ... n Single-chip Controlling unit connects, described first, two ... n Single-chip Controlling unit is by I/O mouth P1.3, P1.4, P1.5, P2.0 and P2.1 respectively with 1-1, 1-2, 1-3, 1-4, 1-5, 2-1, 2-2, 2-3, 2-4, 2-5 ... n-1, n-2, n-3, n-4, n-5 temperature probe circuit connects, described first, two, n485 communicating circuit is connected with 485 communication buses respectively.
As shown in Figure 2, described temperature probe circuit comprises DS18B20 temperature sensor, electric capacity of voltage regulation C4 and pull-up resistor R4, wherein: described DS18B20 temperature sensor pin 1 ground connection, pin 2 one tunnels are connected, separately lead up to the I/O mouth of single-chip microcomputer, and pull-up resistor R4 is connected with pin 3, described pin 3 is connected and passes through electric capacity of voltage regulation C4 ground connection with power supply VCC is anodal.
As shown in Figure 3, described 485 communicating circuits mainly comprise MAX3485 module, wherein: described MAX3485 module pin 1 is connected with P1.2 with the PORT COM P1.1 of Single-chip Controlling unit respectively with pin 4, pin 5 ground connection, pin 1, 2 and 4 respectively with pull-up resistor R13, one end of R12 and R11 is connected, pull-up resistor R13, the other end of R12 and R11 is connected with power supply VCC is anodal after being connected again, pin 2 is connected with 3 short circuits and with the I/O port P1.0 of Single-chip Controlling unit, pin 8 is connected and passes through electric capacity of voltage regulation C16 ground connection with power supply VCC is anodal, between pin 6 and 7, also connecting resistance R14 is also connected with 485 communication buses by terminal J12.
The utility model advantage is: a kind of temperature collecting device has the function of multiplex temperature collection, only needs simple communication just can obtain temperature data; The position of measuring is flexible, can be easily fixed to and much be difficult for the place that measures; In addition, not affecting under the prerequisite of normal communication in shared 485 connections of original system, multiple temperature collecting devices are articulated in 485 communication buses, do not interfere with each other, drop to minimum on the impact of other parts of system.
Claims (1)
1. a temperature collecting device, mainly comprise first, two ... n485 communicating circuit, described first, two ... n485 communicating circuit by PORT COM P1.1 and P1.2 respectively with first, two ... n Single-chip Controlling unit connects, described first, two ... n Single-chip Controlling unit is by I/O mouth P1.3, P1.4, P1.5, P2.0 and P2.1 respectively with 1-1, 1-2, 1-3, 1-4, 1-5, 2-1, 2-2, 2-3, 2-4, 2-5 ... n-1, n-2, n-3, n-4, n-5 temperature probe circuit connects, described first, two ... n485 communicating circuit is connected with 485 communication buses respectively, it is characterized in that: described temperature probe circuit comprises DS18B20 temperature sensor, electric capacity of voltage regulation C4 and pull-up resistor R4, wherein: described DS18B20 temperature sensor pin 1 ground connection, pin 2 one tunnels are connected with the I/O mouth of single-chip microcomputer, the pull-up resistor R4 of separately leading up to is connected with pin 3, described pin 3 is connected and passes through electric capacity of voltage regulation C4 ground connection with power supply VCC is anodal, described 485 communicating circuits mainly comprise MAX3485 module, wherein: described MAX3485 module pin 1 is connected with P1.2 with the PORT COM P1.1 of Single-chip Controlling unit respectively with pin 4, pin 5 ground connection, pin 1, 2 and 4 respectively with pull-up resistor R13, one end of R12 and R11 is connected, pull-up resistor R13, the other end of R12 and R11 is connected with power supply VCC is anodal after being connected again, pin 2 is connected with 3 short circuits and with the I/O port P1.0 of Single-chip Controlling unit, pin 8 is connected and passes through electric capacity of voltage regulation C16 ground connection with power supply VCC is anodal, between pin 6 and 7, also connecting resistance R14 is also connected with 485 communication buses by terminal J12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279907.1U CN203965050U (en) | 2014-05-28 | 2014-05-28 | A kind of temperature collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279907.1U CN203965050U (en) | 2014-05-28 | 2014-05-28 | A kind of temperature collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965050U true CN203965050U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420279907.1U Expired - Fee Related CN203965050U (en) | 2014-05-28 | 2014-05-28 | A kind of temperature collecting device |
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| CN (1) | CN203965050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106708122A (en) * | 2016-11-20 | 2017-05-24 | 广西大学 | Laboratory petri dish integrated temperature detection and management system |
-
2014
- 2014-05-28 CN CN201420279907.1U patent/CN203965050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106708122A (en) * | 2016-11-20 | 2017-05-24 | 广西大学 | Laboratory petri dish integrated temperature detection and management system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20160528 |
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| CF01 | Termination of patent right due to non-payment of annual fee |