CN215374056U - Temperature and humidity acquisition device with multi-machine cascade automatic address allocation function - Google Patents
Temperature and humidity acquisition device with multi-machine cascade automatic address allocation function Download PDFInfo
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Abstract
The utility model provides a temperature and humidity acquisition device for multi-machine cascade automatic address allocation, which comprises: the intelligent temperature and humidity monitoring device comprises a main control chip module, a display module, a temperature and humidity acquisition module, a communication module, a power conversion module, a cascade input port, an address management input module, an address management output module and a cascade output port, wherein the cascade input port, the address management input module, the main control chip module, the address management output module and the cascade output port are sequentially connected, the power conversion module, the display module and the temperature and humidity acquisition module are respectively electrically connected with the main control chip module, and the main control chip module is also electrically connected with the cascade input port and the cascade output port through the communication module. The multi-machine cascading temperature and humidity acquisition device capable of automatically distributing addresses effectively solves the problem that equipment installation personnel and debugging personnel need to enter a field simultaneously for matching, and has the advantages of being efficient, convenient, easy to expand, easy to replace and the like in engineering construction installation, debugging, application and maintenance.
Description
Technical Field
The utility model relates to a temperature and humidity acquisition device, in particular to a temperature and humidity acquisition device with a plurality of cascaded devices and capable of automatically allocating addresses.
Background
At present, when networking is performed on an RS485 communication bus, networking debugging can be completed only by knowing the communication address of each node device in advance, but data interaction cannot be performed on the devices on the communication bus under the condition that the address of the node device is not known, and particularly when the same address appears on the node device, address modification and data interaction cannot be performed on the node device through the communication bus. The requirement on equipment installation and debugging operators is high, installation and debugging personnel are required to enter the field at the installation and debugging stage, the construction and debugging cost is high, and the later-stage repair and replacement are inconvenient.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the temperature and humidity acquisition device with the multi-machine cascade automatic address allocation function, which can assign new communication addresses to all equipment again under the condition of not knowing the equipment communication addresses on the communication bus, effectively solves the problem that equipment installation personnel and debugging personnel need to enter the field and cooperate at the same time, and has the advantages of high efficiency, convenience, easy expansion, easy replacement and the like in engineering construction installation, debugging, application and maintenance.
In order to implement the above technical solution, the present invention provides a temperature and humidity acquisition apparatus for multi-machine cascade automatic address allocation, comprising: a main control chip module, a display module, a temperature and humidity acquisition module, a communication module, a power conversion module, a cascade input port, an address management input module, an address management output module and a cascade output port, wherein the signal output end of the cascade input port is connected with the signal input end of the address management input module, the signal output end of the address management input module is connected with the signal input end of the main control chip module, the signal output end of the main control chip module is connected with the signal input end of the address management output module, the signal output end of the address management output module is connected with the cascade output port, the cascade input port is connected with the cascade output port through another two communication lines, the power supply conversion module, the display module and the temperature and humidity acquisition module are electrically connected with the main control chip module respectively, and the main control chip module is also electrically connected with the cascade input port and the cascade output port through the communication module respectively.
In the technical scheme, in the actual working process, a main control chip Module (MCU) is used for controlling the next-level communication management circuit to open or close the address writing function, a cascade input port and a cascade output port are adopted to carry out front-and-back multi-machine cascade, the power supply and the communication of the device are simultaneously completed, a temperature and humidity acquisition module is used for acquiring the temperature and humidity information of the external environment and monitoring the overrun alarm information, an address management input module and an address management output module are respectively used for automatically allocating the communication address function, after the address writing is awakened by broadcasting, the previous-level main control chip controls the next-level communication management circuit to open or close the address writing enable, the authorization response of all the devices on the communication bus according to the address instructions received in sequence is realized, the communication address automatic allocation of all the devices on the communication bus is completed, the device adopts an auxiliary power supply from DC9V to DC30V for power supply, and converts the power supply into DC5V through the power conversion module to be respectively provided to each module.
Preferably, the display module is digital display screen, be provided with the digital sign of temperature on the digital display screen, the upper right side of the digital sign of temperature is provided with the temperature sign in centigrade, the right side below of the digital sign of temperature is provided with the fahrenheit temperature sign, be provided with humidity display sign under the digital sign of temperature, the left side below of humidity display sign is provided with reports to the police and shows the sign, the below of reporting to the police and showing the sign is provided with communication indication sign, communication indication sign's right side is provided with IP address display sign. The temperature digital identification is used for displaying the monitored temperature and is matched with the temperature identification in centigrade or the temperature identification in Fahrenheit for use, the humidity display identification is directly used for displaying the monitored humidity information, when the monitored temperature or humidity exceeds a preset value, the alarm display identification automatically alarms, and the IP address display identification is used for displaying the IP address of the corresponding temperature and humidity acquisition module, so that the rapid identification is facilitated.
Preferably, the cascade input ports and the cascade output ports of the front and rear stages are connected by direct insertion of 8-core network cables.
Preferably, the cascade input port and the cascade output port both adopt RJ45 interfaces, which facilitates quick connection.
The temperature and humidity acquisition device for automatically allocating addresses by multi-machine cascading has the beneficial effects that:
1) a multi-machine cascade connection is carried out to form a system in a network cable direct insertion mode, so that system expansion and maintenance are facilitated, and construction cost is reduced;
2) the power supply and the communication are realized by cascade network cables without wiring again;
3) the bus address modification device has the function of automatically distributing communication addresses on the bus, and is suitable for modifying addresses of all devices on the bus under the condition that the addresses of the devices are unknown or the addresses are repeated.
Drawings
Fig. 1 is a schematic block diagram of the circuit structure of the present invention.
Fig. 2 is a schematic block diagram of a multi-machine cascade system of the present invention.
Fig. 3 is an interface diagram of a display module in the present invention.
FIG. 4 is a schematic block diagram of the real-time monitoring of the read/write system of the present invention.
In the figure: 1. a main control chip module; 2. a display module; 21. temperature digital identification; 22. an alarm display identifier; 23. a communication indication mark; 24. IP address display identification; 25. a humidity display identifier; 26. a Fahrenheit temperature designation; 27. marking the temperature in centigrade; 3. a temperature and humidity acquisition module; 4. a communication module; 5. a power conversion module; 6. a cascade input port; 7. an address management input module; 8. an address management output module; 9. and (4) cascading output ports.
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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example (b): a temperature and humidity acquisition device with multi-machine cascade automatic address allocation is disclosed.
Referring to fig. 1 to 4, a temperature and humidity acquisition device with multi-machine cascade automatic address allocation includes: the device comprises a main control chip module 1, a display module 2, a temperature and humidity acquisition module 3, a communication module 4, a power conversion module 5, a cascade input port 6, an address management input module 7, an address management output module 8 and a cascade output port 9, wherein the cascade input port 6 and the cascade output port 9 at the front stage and the back stage are connected by direct insertion of 8-core network cables, the cascade input port 6 and the cascade output port 9 both adopt RJ45 interfaces for convenient and quick connection, the signal output end of the cascade input port 6 is connected with the signal input end of the address management input module 7, the signal output end of the address management input module 7 is connected with the signal input end of the main control chip module 1, the signal output end of the main control chip module 1 is connected with the signal input end of the address management output module 8, and the signal output end of the address management output module 8 is connected with the cascade output port 9, in the actual working process, information is input through the address management input module 7, then a new communication address is assigned to the address management output module 8 through the main control chip module 1, the communication address of the equipment can be controlled through the main control chip module 1 by adopting an address with numerical values which are sequentially increased or decreased, and the address with random numerical values can also be adopted, so that the method has the advantages of high efficiency, convenience, easy expansion and easy replacement in engineering construction installation, debugging, application and maintenance; the cascade input port 6 is connected with the cascade output port 9 through another two communication lines, the power conversion module 5, the display module 2 and the temperature and humidity acquisition module 3 are respectively electrically connected with the main control chip module 1, and the main control chip module 1 is also respectively electrically connected with the cascade input port 6 and the cascade output port 9 through the communication module 4.
In this embodiment, in an actual working process, the main control chip module 1 is an RN8211 and is a main control chip and is configured to process measurement data, communication management, and display data of the digital temperature and humidity sensor, the main control chip module 1(MCU) is configured to control the next-stage communication management circuit to turn on or turn off the address writing function, a cascade input port 6 and a cascade output port 9 are used between settings to perform front-stage and back-stage multi-machine cascade, and power supply and communication of the device are simultaneously completed. The temperature and humidity acquisition module 3 is a digital temperature and humidity sensor of SHT20 type and is used for acquiring temperature and humidity information of an external environment and monitoring overrun alarm information, the address management input module 7 and the address management output module 8 are respectively used for automatically allocating communication address functions, after an address is awakened by broadcasting, the next-stage communication management circuit is controlled to be opened or closed to write address enabling through the previous-stage main control chip module 1, authorization response of all devices on a communication bus is realized according to address instructions received in sequence one by one, and automatic allocation of communication addresses of all devices on the communication bus is completed. The device adopts DC 9V-DC 30V as auxiliary power supply, converts the power supply into DC5V through the power supply conversion module 5 and provides the DC5V for each module respectively, and the display module 2 is used for displaying the data collected by the temperature and humidity collection module 3.
Referring to fig. 3, in this embodiment, display module 2 is the digital display screen, be provided with temperature digital identification 21 on the digital display screen, the upper right side of temperature digital identification 21 is provided with temperature sign 27, the right side below of temperature digital identification 21 is provided with fahrenheit temperature sign 26, be provided with humidity display identification 25 under temperature digital identification 21, the left side below of humidity display identification 25 is provided with warning display identification 22, the below of warning display identification 22 is provided with communication indicator 23, communication indicator 23's right side is provided with IP address display identification 24. The temperature digital identifier 21 is used for displaying the monitored temperature and is used in cooperation with the centigrade temperature identifier 27 or the fahrenheit temperature identifier 26, the humidity display identifier 25 is directly used for displaying the monitored humidity information, when the monitored temperature or humidity exceeds a preset value, the alarm display identifier 22 automatically alarms, the IP address display identifier 24 is used for displaying the IP address of the corresponding temperature and humidity acquisition module, so that the temperature and humidity acquisition module can be rapidly identified conveniently, and the communication indication identifier 24 is used for displaying whether the temperature and humidity acquisition module is in a communication state or not.
The temperature and humidity acquisition device capable of automatically allocating addresses through multi-machine cascade connection carries out multi-machine cascade connection to form a system in a network cable direct insertion mode, system expansion and maintenance are facilitated, and construction cost is reduced; the power supply and the communication are realized by cascade network cables without wiring again; the device has the function of automatically distributing communication addresses on the bus, is suitable for modifying the addresses of all devices on the bus under the condition that the addresses of the devices are unknown or the addresses are repeated, and the temperature measurement data is switchable between a degree centigrade and a degree fahrenheit.
The device also establishes a communication link and a power supply loop for the cascade connection of the front and rear devices through the RJ45 input and output interface, and establishes a link channel for the rear MCU to receive the control of the front MCU. The display unit displays the current address information, the alarm information and the acquired temperature and humidity data of the device, and can be used for locally inquiring the real-time data information of the monitoring point. The address management circuit adjusts the high-low conversion of the output level according to the MCU control state, controls the lower-level address management input to turn on and turn off the address write enable, completes the write address authorization control of each level of devices after cascade connection, and realizes the automatic allocation of communication addresses to all devices on the bus according to the arrangement sequence after multi-machine cascade connection.
The device is mainly applied to places such as data rooms, server cabinets, warehouses and the like needing to monitor multipoint temperature and humidity data in real time, new communication addresses can be assigned to all equipment again under the condition that equipment communication addresses on a communication bus do not need to be known, the communication addresses of the equipment can be sequentially increased or decreased to arrange numerical addresses, and random numerical addresses can also be adopted. The problem that equipment installation personnel and debugging personnel need to enter a field and cooperate at the same time is effectively solved, and the device has the advantages of high efficiency, convenience, easy expansion, easy replacement and the like in engineering construction installation, debugging, application and maintenance.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.
Claims (4)
1. A temperature and humidity acquisition device with multi-machine cascade automatic address allocation is characterized by comprising: a main control chip module, a display module, a temperature and humidity acquisition module, a communication module, a power conversion module, a cascade input port, an address management input module, an address management output module and a cascade output port, wherein the signal output end of the cascade input port is connected with the signal input end of the address management input module, the signal output end of the address management input module is connected with the signal input end of the main control chip module, the signal output end of the main control chip module is connected with the signal input end of the address management output module, the signal output end of the address management output module is connected with the cascade output port, the cascade input port is connected with the cascade output port through another two communication lines, the power supply conversion module, the display module and the temperature and humidity acquisition module are electrically connected with the main control chip module respectively, and the main control chip module is also electrically connected with the cascade input port and the cascade output port through the communication module respectively.
2. The multi-machine cascade automatic address assignment temperature and humidity acquisition device as claimed in claim 1, wherein: the display module is the digital display screen, be provided with temperature number sign on the digital display screen, the upper right side of temperature number sign is provided with the temperature sign in centigrade, the right side below of temperature number sign is provided with the fahrenheit temperature sign, be provided with humidity display sign under the temperature number sign, the left side below of humidity display sign is provided with reports to the police and shows the sign, the below of reporting to the police and showing the sign is provided with communication indicator, communication indicator's right side is provided with IP address display sign.
3. The multi-machine cascade automatic address assignment temperature and humidity acquisition device as claimed in claim 1, wherein: the cascade input ports and the cascade output ports of the front stage and the rear stage are directly connected through 8-core network cables.
4. The multi-machine cascade automatic address assignment temperature and humidity acquisition device as claimed in claim 1, wherein: and the cascade input port and the cascade output port adopt RJ45 interfaces.
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| CN202121588511.1U CN215374056U (en) | 2021-07-13 | 2021-07-13 | Temperature and humidity acquisition device with multi-machine cascade automatic address allocation function |
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| CN202121588511.1U CN215374056U (en) | 2021-07-13 | 2021-07-13 | Temperature and humidity acquisition device with multi-machine cascade automatic address allocation function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046896A (en) * | 2022-01-13 | 2022-02-15 | 杭州飞仕得科技有限公司 | Temperature sampling circuit of multiple cascade mode |
| CN115237010A (en) * | 2022-06-24 | 2022-10-25 | 厦门立林科技有限公司 | Panel cascade control terminal and control method thereof |
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2021
- 2021-07-13 CN CN202121588511.1U patent/CN215374056U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046896A (en) * | 2022-01-13 | 2022-02-15 | 杭州飞仕得科技有限公司 | Temperature sampling circuit of multiple cascade mode |
| CN115237010A (en) * | 2022-06-24 | 2022-10-25 | 厦门立林科技有限公司 | Panel cascade control terminal and control method thereof |
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