CN203053481U - Wireless energy efficiency testing system of refrigerator based on ZigBee technology - Google Patents
Wireless energy efficiency testing system of refrigerator based on ZigBee technology Download PDFInfo
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- CN203053481U CN203053481U CN2013200277462U CN201320027746U CN203053481U CN 203053481 U CN203053481 U CN 203053481U CN 2013200277462 U CN2013200277462 U CN 2013200277462U CN 201320027746 U CN201320027746 U CN 201320027746U CN 203053481 U CN203053481 U CN 203053481U
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Abstract
The utility model discloses a wireless energy efficiency testing system of a refrigerator based on a ZigBee technology. The system comprises at least one electrical-parameter wireless acquisition node, at least two wireless temperature acquisition nodes, at least one wireless temperature routing node, at least one electrical-parameter wireless routing node, one coordinator node and a computer. The electrical-parameter wireless acquisition node is connected with the electrical-parameter wireless routing node through a wireless network. The wireless temperature acquisition nodes are connected with the wireless temperature routing node through the wireless network. The wireless temperature routing node is connected with the coordinator node through the wireless network. The electrical-parameter wireless routing node is connected with the coordinator node through the wireless network. The coordinator node is connected with the computer through a serial port line. A wireless detection mode without line construction is used to detect temperatures of chambers of the refrigerator, an environment lab temperature and the electrical parameter of the refrigerator which are needed by the refrigerator energy efficiency testing. By using the wired detection, wiring is complex, cost is high and there are many other problems. By using the system of the utility model, the above problems are solved and detection efficiency is increased. The system of the utility model is applied in refrigerator type testing and factory inspection.
Description
Technical Field
The utility model relates to an efficiency test system, in particular to wireless efficiency test system of refrigerator based on zigBee technique.
Background
In the current detection process of the household appliances, the household appliances are basically connected in a wired mode, for example, input power and input current measurement in a safety test, temperature record of a temperature rise test and the like, storage temperature, cooling speed and other items in a type test, and power consumption, heat efficiency and other items in an energy efficiency test. The wired connection detection method is an ideal choice for basically fixed tested objects and achieves satisfactory effect in practical use. However, with the development of wireless technology, the realization of wireless communication function is simpler and faster, and the data transmission speed is also faster and faster, which can completely reach the level of wired communication. Meanwhile, the wired connection is troublesome in wiring, the line fault is difficult to check, and the cable cannot be moved randomly.
The Chinese patent publication No. CN201819704, published Japanese 2011, 5, month 4, and entitled "refrigerator energy efficiency test based on micropower wireless communication technology" discloses a wireless temperature measurement system designed by utilizing a semiconductor sensor LM92 and a wireless single chip microcomputer CC1110 by applying the micropower wireless communication technology, so that the influence of the line quality on a test result is reduced, the maintenance difficulty is reduced, the detection work efficiency is improved, the measurement error is reduced, and the accuracy of detection data is ensured. The disadvantages of this system are: the system only realizes wireless temperature measurement, the electric parameter measurement in the energy efficiency test still adopts a wired mode, the problem of troublesome wiring still exists, the main test item of the refrigerator energy efficiency test is power consumption, and the accuracy of the power consumption result directly influences the accuracy of the refrigerator energy efficiency test result.
Disclosure of Invention
An object of the utility model is to provide a wireless efficiency test system of refrigerator based on zigBee technique solves the wiring trouble, the problem with high costs that wired detection exists, and this system not only can the wireless temperature measurement moreover, but also can the wireless measurement electrical parameter, compensaties current refrigerator efficiency test system's not enough.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
the utility model comprises at least one wireless collection node of electric parameters, at least two wireless collection nodes of temperature, at least one wireless routing node of temperature for managing the wireless collection nodes of temperature and having relay function, at least one wireless routing node of electric parameters for managing the wireless collection nodes of electric parameters and having relay function, a coordinator node for collecting data and a computer; wherein,
1) a transmitting module in the wireless electric parameter acquisition node is respectively connected with an electric parameter acquisition module, a first RF antenna and a liquid crystal display circuit through leads;
2) one transmitting module in the temperature wireless acquisition node is respectively connected with at least one temperature acquisition module, a second RF antenna and a liquid crystal display circuit through leads;
3) one transmitting module in the temperature wireless routing node is connected with the third RF antenna through a lead;
4) one transmitting module in the electric parameter wireless routing node is connected with the fourth RF antenna through a lead;
5) a transmitting module in the coordinator node is respectively connected with the fifth RF antenna and a serial port circuit;
6) the wireless electric parameter acquisition node is connected with the wireless electric parameter routing node through a wireless network, the wireless temperature acquisition node is connected with the wireless temperature routing node through the wireless network, the wireless temperature routing node and the wireless electric parameter routing node are respectively connected with the coordinator node through the wireless network, and the coordinator node is connected with the computer through a serial port line.
All the transmitting modules are wireless transceivers CC 2430; the temperature acquisition module is a DS18B20 temperature sensor; the electric parameter acquisition module comprises an ADE7755 electric energy metering chip, a voltage detection circuit and a current detection circuit; the voltage detection circuit and the current detection circuit are respectively connected with the ADE7755 electric energy metering chip through leads.
The utility model has the advantages that:
the utility model discloses with the help of the characteristics of wireless communication technology zigBee technique ad hoc network, low cost, self-organization, low-power consumption, the wireless efficiency test of refrigerator has been realized, gather the point when having avoided traditional wiring and arrange the difficulty, the system is with high costs, the big shortcoming of the degree of difficulty is maintained in the installation, system configuration is simple, the installation is nimble, the wiring trouble, with high costs scheduling problem that have solved wired detection and exist, this system not only can the wireless temperature measurement in addition, but also can the wireless measurement electrical parameter, realize the wireless efficiency test of real refrigerator.
Drawings
Fig. 1 is a block diagram of the system structure of the present invention.
Fig. 2 is a block diagram of the internal structure of the CC2430 chip of the present invention.
Fig. 3 is the utility model discloses a temperature wireless acquisition node hardware structure chart.
Fig. 4 is the utility model discloses a wireless collection node hardware structure chart of electrical parameter.
Fig. 5 is a flow chart of the coordinator node software of the present invention.
Fig. 6 is the software flow chart of the temperature wireless routing node of the present invention.
Fig. 7 is the utility model discloses a temperature wireless acquisition node software flowchart.
In the figure: 1. a temperature acquisition module; 2. an electrical parameter acquisition module; 3. a transmitting module; 4. an electrical parameter wireless acquisition node; 5. a temperature wireless acquisition node 6 and a temperature wireless routing node; 7. an electrical parameter wireless routing node; 8. a coordinator node; 9. and (4) a computer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1, a wireless energy efficiency testing system for a refrigerator based on ZigBee technology comprises five wireless electrical parameter collection nodes 4, five wireless temperature collection nodes 5, a wireless temperature routing node 6 for managing the wireless temperature collection nodes and having a relay function, a wireless electrical parameter routing node 7 for managing the wireless electrical parameter collection nodes and having the relay function, a coordinator node 8 for collecting data, and a computer 9. The wireless temperature collection node is connected with the wireless temperature collection node 5 through the wireless network and the wireless coordinator node 8 through the wireless network, and the wireless coordinator node 8 is connected with the computer 9 through a serial port line. If the distance between the temperature wireless routing node 6 and the electrical parameter wireless routing node 7 and the coordinator node 8 exceeds the distance of ZigBee communication, the communication between the temperature wireless routing node and the coordinator node 8 can be indirectly realized through adjacent router nodes.
As shown in fig. 2, the transmitting module 3 includes an 8051 core, a program memory, a radio frequency control circuit, a timer circuit, a data memory, a DMA controller, and a general IO port/chip internal peripheral. The 8051 core is an enhanced microcontroller core with high performance and low power consumption, runs a clock of 32MHz, and has 8 times of the performance of the standard 8051 core. The CC2430 chip also includes a 2.4GHz RF transceiver, 4 frequency selectable oscillators. The utility model provides a transmitting module in coordinator node, the wireless routing node of temperature, the wireless routing node of electrical parameter, the wireless collection node of temperature and the wireless collection node of electrical parameter is the CC2430 chip, and the CC2430 chip can be bought on market very easily moreover.
As shown in fig. 3, one transmitting module 3 in the temperature wireless collecting node 5 is respectively connected with at least one temperature collecting module 1, one RF antenna and one liquid crystal display circuit through wires. The temperature acquisition module 1 is responsible for acquiring temperature parameters, and the transmitting module 3 is responsible for operating the ZigBee protocol, processing and transmitting temperature data and monitoring the operation of the temperature sensor. The working voltage range of the temperature acquisition module 1 is 3.0-5.5V, the temperature measurement range is-55-125 ℃, the intrinsic temperature measurement resolution is 0.5 ℃, and the corrected temperature can reach +/-0.3 ℃. A data line pin (DQ) of the temperature acquisition module 1 is connected with any digital I/O pin of the CC2430 chip, and when the temperature acquisition module works, a pull-up resistor needs to be connected to provide energy for a data line, so that the working stability is ensured. A temperature wireless acquisition node 5 and a plurality of temperature acquisition modules 1 are placed in each compartment of the refrigerator, and a plurality of temperature wireless acquisition nodes 5 are placed in the refrigerator environment laboratory.
As shown in fig. 4, one transmitting module 3 in the wireless electrical parameter collecting node 4 is respectively connected to one electrical parameter collecting module 2, one RF antenna, and one liquid crystal display circuit through a wire, wherein the electrical parameter collecting module 2 includes a voltage detecting circuit, a current detecting circuit, and an ADE7755 electric energy metering chip. The transmitting module 3 is responsible for operating the ZigBee protocol, processing and transmitting electrical parameter data and monitoring the operation of the ADE7755 chip. The ADE7755 chip communicates with the transmitter module 3 in a predetermined communication protocol to provide relevant power parameters (voltage, current, power, etc.). An electric parameter wireless acquisition node 4 is arranged outside each refrigerator.
As shown in fig. 5, 6, and 7, in the ZigBee protocol networking process, after the coordinator node 8 is powered on, a networking instruction is sent, a short-distance network with the coordinator node 8 as a center is established, then the temperature wireless routing node 6 and the electrical parameter wireless routing node 7 are opened, the routing nodes are added into the network, the network coverage is expanded, and finally the temperature wireless collection node 5 and the electrical parameter wireless collection node 4 are opened. As shown in fig. 5, the coordinator node 8 serves as a central control platform, and is tasked with establishing a new network, completing the work of establishing the network, receiving data sent by each network node, processing the data, and sending a corresponding control signal. As shown in fig. 6, the temperature wireless routing node 6 is responsible for searching for a target device, i.e., the temperature wireless acquisition node 5, receiving data of the temperature wireless acquisition node, processing the data, and transmitting the processed data to the coordinator node 8, where the software flow of the electrical parameter wireless routing node is similar to that of the temperature wireless routing node. As shown in fig. 7, the temperature wireless acquisition node 5 mainly functions to join the ZigBee network, read/write temperature data, receive and transmit data and commands in the ZigBee network, and operate the acquisition module according to the commands. The software flow of the electric parameter wireless acquisition node is similar to that of the temperature wireless acquisition node.
Claims (2)
1. A refrigerator wireless energy efficiency test system based on ZigBee technology is characterized in that: the system comprises at least one electric parameter wireless acquisition node (4), at least two temperature wireless acquisition nodes (5), at least one temperature wireless routing node (6) used for managing the temperature wireless acquisition nodes and having a relay function, at least one electric parameter wireless routing node (7) used for managing the electric parameter wireless acquisition nodes and having the relay function, a coordinator node (8) used for collecting data and a computer (9); wherein,
1) a transmitting module in the electric parameter wireless acquisition node (4) is respectively connected with an electric parameter acquisition module (2), a first RF antenna and a liquid crystal display circuit through leads;
2) one transmitting module in the temperature wireless acquisition node (5) is respectively connected with at least one temperature acquisition module (1), a second RF antenna and a liquid crystal display circuit through leads;
3) one transmitting module in the temperature wireless routing node (6) is connected with a third RF antenna through a lead;
4) one transmitting module in the electric parameter wireless routing node (7) is connected with a fourth RF antenna through a lead;
5) a transmitting module in the coordinator node (8) is respectively connected with the fifth RF antenna and a serial port circuit;
6) the wireless temperature collection node (6) is connected with the wireless temperature collection node (6), the wireless temperature collection node (6) is connected with the wireless electric parameter routing node (7) through a wireless network, the wireless temperature collection node (4) is connected with the wireless electric parameter routing node (7) through a wireless network, the wireless temperature collection node (6) is connected with the wireless electric parameter routing node (7) through a wireless network and a coordinator node (8), and the coordinator node (8) is connected with a computer (9) through a serial port line.
2. The wireless energy efficiency testing system for the refrigerator based on the ZigBee technology as claimed in claim 1, wherein: all the transmitting modules are wireless transceivers CC 2430; the temperature acquisition module (1) is a DS18B20 temperature sensor; the electrical parameter acquisition module (2) comprises an ADE7755 electric energy metering chip, a voltage detection circuit and a current detection circuit; the voltage detection circuit and the current detection circuit are respectively connected with the ADE7755 electric energy metering chip through leads.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013200277462U CN203053481U (en) | 2013-01-18 | 2013-01-18 | Wireless energy efficiency testing system of refrigerator based on ZigBee technology |
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| CN2013200277462U CN203053481U (en) | 2013-01-18 | 2013-01-18 | Wireless energy efficiency testing system of refrigerator based on ZigBee technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105204A (en) * | 2013-01-18 | 2013-05-15 | 中国计量学院 | Refrigerator wireless energy efficiency test system based on ZigBee technology |
| CN105096548A (en) * | 2015-08-24 | 2015-11-25 | 合肥美的电冰箱有限公司 | Refrigerator commodity inspection system and method based on Zigbee communication mode |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
-
2013
- 2013-01-18 CN CN2013200277462U patent/CN203053481U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105204A (en) * | 2013-01-18 | 2013-05-15 | 中国计量学院 | Refrigerator wireless energy efficiency test system based on ZigBee technology |
| CN105096548A (en) * | 2015-08-24 | 2015-11-25 | 合肥美的电冰箱有限公司 | Refrigerator commodity inspection system and method based on Zigbee communication mode |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
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Granted publication date: 20130710 Termination date: 20140118 |