KR20210140843A - A System for Monitoring a Cooling Volume Temperature of a Refrigerating Vehicle Using a Wireless Communication - Google Patents

Abstract

The present invention relates to a system for monitoring the temperature of a refrigeration vehicle by multi-channel temperature detection using a wireless communication method. The system for monitoring the temperature of a refrigeration vehicle by multi-channel temperature detection comprises: a temperature data logger module (11) for acquiring temperature information from at least one temperature sensor module (13_1 to 13_N) disposed in a refrigeration space (12); a GPS module (14) which provides location information to the temperature data logger module (11); a communication module (15) for enabling wireless communication between the temperature data logger module (11) and a monitoring server (16); and an operational information module (17) for acquiring information on operation means for operation of the refrigeration space (12). The temperature data logger module (11) transmits the location information and the temperature information of the refrigeration space (12) to the monitoring server (16), and transmits information in accordance with the monitoring result transmitted from the monitoring server (16) to the operation means. In accordance with the present invention, the reliability of temperature control is increased.

Description

A system for monitoring a temperature of a refrigeration vehicle by multi-channel temperature detection of a wireless communication method {A System for Monitoring a Cooling Volume Temperature of a Refrigeration Vehicle Using a Wireless Communication}

The present invention relates to a temperature monitoring system of a refrigeration vehicle by multi-channel temperature detection using a wireless communication method, and more specifically, to a multi-channel temperature monitoring system using a wireless communication method in which the temperature state of the refrigerating space of a refrigeration tower vehicle can be controlled by wireless communication. It relates to a temperature monitoring system of a refrigeration vehicle by channel temperature detection.

The refrigeration system for refrigerated logistics vehicles functions to maintain the proper temperature during the movement of vegetables, meat, medicine, fish, or similar logistics where temperature management is important. Such a refrigeration system needs to be designed so that energy consumption is minimized while the refrigeration space is maintained at a predetermined temperature range during the movement of logistics. A known refrigeration vehicle employs a system for managing the temperature of the refrigerating vehicle using a thermographer that stores and prints it. Such a temperature management system for a refrigeration vehicle has a disadvantage in that it is difficult to manage or monitor the refrigeration vehicle in a smart manner online or in real time. Patent Publication No. 10-2008-0082699 discloses a temperature and taco recording device for a refrigerated / frozen vehicle. In addition, Patent Registration No. 10-1250307 discloses a refrigerator controller for a vehicle having a temperature record storage and output function. Such prior art or known techniques are difficult to monitor in real time the state of the refrigerating space executed in the refrigerating vehicle. In addition, it has a disadvantage in that it is impossible to monitor the refrigeration state of a plurality of refrigeration vehicles. Therefore, for smart logistics monitoring of large-scale refrigerated vehicles, a data logger that can store the temperature and current location data of multiple channels for the refrigeration space of the vehicle and transmit it to the server using wireless communication (LTE, 3G) There is a need to develop a system capable of controlling the refrigeration state of a plurality of refrigeration vehicles.

The present invention has the following objects to solve the problems of the prior art.

Patent Document 1: Patent Publication No. 10-2008-00825699 (Shinheung Control Co., Ltd., published on September 12, 2008) Temperature and taco recording device for refrigerated/freezing vehicles Patent Document 2: Patent Registration No. 10-1250307 (Dongin Thermo, 2013.04.03. Announcement) Vehicle freezer controller with temperature recording device and output function

It is an object of the present invention to obtain real-time location information of a refrigerated vehicle by a GPS module while acquiring temperature information of a refrigeration space through multiple channels to control a refrigeration state through wireless communication. It is to provide a temperature monitoring system of a refrigeration vehicle by

According to a suitable embodiment of the present invention, a monitoring system for a refrigeration vehicle by multi-channel temperature detection includes a temperature data logger module for acquiring temperature information from at least one temperature sensor module disposed in a refrigeration space; a GPS module that provides location information to the temperature data logger module; a communication module for enabling wireless communication between the temperature data logger module and the monitoring server; and an operation information module for acquiring information on operation means for operation of the freezing space, wherein the temperature data logger module transmits location information and temperature information of the freezing space to the monitoring server, and receives the monitoring result transmitted from the monitoring server. information is transmitted to the actuating means.

According to another suitable embodiment of the present invention, the temperature data logger module comprises an operation selection module for operation of the temperature sensor module; communication means for communicating with the temperature sensor module; and storage means.

According to another suitable embodiment of the present invention, the temperature sensor module is operated independently by a trigger, and the temperature information obtained from the temperature sensor module is combined with the detection position and detection time information by the position-time unit to a data processing unit is sent to

The temperature monitoring system of a refrigeration vehicle by multi-channel temperature detection according to the present invention can express the channel temperature of the refrigeration space of the refrigeration vehicle, current location, or various data related to refrigeration by applying a large TFT graphic LCD display element of 2 inches or more At the same time, it makes the user interface possible. With this structure, it is possible to extend the temperature sensor from 4 channels to a maximum of 255 channels using the serial communication method (CAN), and can be applied to various refrigeration fields such as small to large refrigeration vehicles and refrigeration warehouses. In the monitoring system according to the present invention, wireless communication (LTE, 3G) or a GPS module is disposed, so that log data can be transmitted to the management server. In addition, it is possible to store a large amount of data by using an SD card, and to use a USB memory to back up data and analyze the data accordingly. The monitoring system according to the present invention improves the reliability of temperature control by having precision and linearity by the RTD PT type temperature sensor. In addition, the digital processing part is applied independently to each sensor, so that data is transmitted in a communication manner to the temperature detection unit, eliminating the need for calibration according to the sensor length. Also, since it is transmitted in a serial communication signal system, temperature sensors of various channels can be made with a single cable structure.

1 shows an embodiment of a temperature monitoring system of a refrigeration vehicle by multi-channel temperature detection using a wireless communication method according to the present invention.
2A and 2B show an embodiment of a temperature data logger module applied to a monitoring system according to the present invention.
Figure 3 shows an embodiment of the operating structure of the monitoring system according to the present invention.
4 shows an embodiment of a structure in which temperature information is detected in the monitoring system according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the embodiments are for a clear understanding of the present invention, and the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so they will not be repeatedly described unless necessary for the understanding of the invention, and well-known components will be briefly described or omitted, but the present invention It should not be construed as being excluded from the embodiment of

1 shows an embodiment of a temperature monitoring system for a refrigeration vehicle by multi-channel temperature detection using a wireless communication method according to the present invention.

Referring to FIG. 1 , the temperature monitoring system of a refrigeration vehicle by multi-channel temperature detection using a wireless communication method acquires temperature information from at least one temperature sensor module 13_1 to 13_N disposed in the refrigeration space 12 . data logger module 11; a GPS module 14 that provides location information to the temperature data logger module 11; a communication module 15 for enabling wireless communication between the temperature data logger module 11 and the monitoring server 16; and an operation information module 17 for acquiring information on operating means for operation of the freezing space 12 , wherein the temperature data logger module 11 sends location information of the freezing space 12 to the monitoring server 16 . and transmits the temperature information, and transmits the information according to the monitoring result transmitted from the monitoring server 16 to the operation means.

The data logger module 11 may be, for example, installed in a refrigeration vehicle and connected to the temperature sensor modules 13_1 to 13_N disposed inside the vehicle to become the refrigeration space 12 to enable data communication by, for example, CAN communication. have. The data log module 11 may be independently made and installed in a refrigeration vehicle, and may have a selectively movable electronic device structure. The freezing space 12 is capable of controlling the internal temperature, humidity or gas flow, and various kinds of vegetables, foodstuffs, fish, and meat. It can be a space for storing medicines, chemicals, or similar temperature-affected items. The refrigerating space 12 may be a movable storage space, such as a vehicle installed in a refrigerating vehicle, or a fixed space in a predetermined place, such as a storage warehouse. The environmental condition of the refrigerating space 12 can be controlled by an operating means, and the operating means is, for example, a refrigeration system installed in a refrigeration vehicle or a refrigeration capable of controlling the temperature, humidity or gas flow of the similar refrigerating space 12 . can be a system. Information on the operating state of the operating means may be obtained by the operation information module 17 . The operation information module 17 may acquire environment information related to the operation means, including information on the operation means, through various means. For example, the operation information module 17 may acquire environmental information related to the operating state of the engine of the refrigeration vehicle or the location of the refrigeration space 12 . At least one temperature sensor module (13_1 to 13_N) may be installed in the freezing space (12), and each temperature sensor module (13_1 to 13_N) is operated independently or according to an operation command of the temperature data logger module (11) can be operated accordingly. The temperature sensor modules 13_1 to 13_N and each of the temperature sensor modules 13_1 to 13_N may be connected to enable data communication, and the temperature detection information obtained by each of the temperature sensor modules 13_1 to 13_N is a temperature data logger. It may be transmitted to the module 11 and stored. The location information of the refrigeration space 12 may be detected by the GPS module 14 , and the location information detected by the GPS module 14 may be transmitted to the temperature data logger module 11 and the communication module 15 . have. For example, location information of the refrigeration vehicle in the process of moving may be periodically transmitted to the monitoring server 16 . Also, the location information of the refrigeration vehicle may be transmitted to the data logger module 11 periodically or according to the request of the data logger module 11 . The communication module 15 may be installed in the data logger module 11 or connected to the data logger module 11 and installed in various locations so that the data logger module 11 can communicate with the monitoring server 16 . The monitoring server 16 may have a function of monitoring the refrigeration state of the at least one refrigeration space 12 . The state of the refrigeration space 12 of a plurality of refrigeration vehicles may be monitored by the monitoring server 16 . The monitoring server 16 may have information about the size of each refrigerating space 12 and items stored in the refrigerating space 12 . In addition, the monitoring server 16 may receive the position of each refrigeration space 12 detected by the GPS module 14 through each communication module 15 and confirm the position of each refrigeration space 12 . . The communication module 15 may include means capable of various wireless communication such as LTE communication, 3G, 4G, 5G communication, or the like. The operation information module 17 may detect and transmit information on the operation means for controlling the refrigeration condition of the freezing space 12 or a device related to the operation means to the data logger module 11 . For example, the operation state of the refrigeration system of the refrigeration vehicle, operation information of the engine of the refrigeration vehicle, or similar information may be detected by the operation information module 17 and transmitted to the data logger module 11 . The data logger module 11 may transmit the temperature information detected by each of the temperature sensor modules 13_1 to 13_N and the location information of the freezing space 12 to the monitoring server 16 . Optionally, the data logger module 11 may transmit the information detected by the operation information module 17 to the monitoring server 16 . And the monitoring server 16 may monitor the state of each refrigerating space 12 based on the temperature information and location information transmitted from the data logger module 11 . The data logger module 11 , the GPS module 14 or the communication module 15 may be connected to each other in various ways and are not limited to the presented embodiment.

2A and 2B show an embodiment of a temperature data logger module applied to a monitoring system according to the present invention.

2A and 2B , the temperature data logger module 11 includes an operation selection module 22 for operation of the temperature sensor modules 13_1 to 13_N; a communication means 27 for communicating with the temperature sensor modules 13_1 to 13_N; and storage means 28 . The data logger module 11 may be independently made and installed in a refrigeration vehicle, or may have a portable and mobile electronic device structure. The data logger module 11 may operate independently and may have GPS information receiving means or receive GPS information of the refrigerated vehicle from the GPS information receiving means. In addition, the data logger module 11 may have a wireless communication means, or may be connected to the wireless communication means to perform wireless communication with the monitoring server described above. The temperature information of the refrigerating space detected by the temperature sensor module 13 may be transmitted to the temperature data unit 26 , and stored in the storage medium 28 such as an SD card by the input/output processing unit 23 , for example. can be The entire operation of the data logger module 11 may be controlled by the control module 21 , the control module 21 may include a microprocessor and operating software, and a temperature sensor module through the detection setting unit 24 . The operation of (13) can be controlled. The operation selection module 22 enables the function of the temperature data logger module 11 to be selected and executed. The operation selection module 22 may include various buttons or switches that enable the functions of the data logger module 11 to be activated. A USB port 25 may be installed in the data logger module 11 , and a USB connection may be made through the USB port 25 , so that the temperature data stored in the storage medium 28 may be copied to the USB. Also, the operating software of the data logger module 11 may be updated through the USB port 25 . The data logger module 11 is capable of data communication with the refrigeration vehicle or the temperature sensor module 13, and data communication with various devices or the temperature sensor module 13 installed in the refrigeration vehicle by, for example, the CAN communication means 27 . This is possible. The data logger module 11 may include a display unit 291 and a printer 292. The display unit 291 may display the current temperature, humidity, or similar information of the refrigerating space in real time, and a printer 292 ), the temperature logger data can be output.

Referring to FIG. 2B , the temperature data logger module 11 may have a rectangular box shape as a whole, and various electronic devices or electronic components may be disposed inside the body BD in which the accommodation space is formed. An operation selection module 22 having a plurality of operation buttons formed on the front surface of the body 11 may be disposed. A display unit 291 for displaying temperature information may be disposed on the front surface of the body 11 , and a printer 292 may be disposed on an upper portion of the body BD. A plurality of temperature sensor modules 13_1 to 13_N may be disposed in the freezing space 12 , and the plurality of temperature sensor modules 13_1 to 13_N detect the temperature of different positions in the freezing space 12 and communicate in series can be transmitted to the data logger module 11 in this way. Each of the temperature sensor modules 13_1 to 13_N may have an independently operable structure, and an operating state may be controlled by the data logger module 11 . The data logger module 11 may have various structures and is not limited to the presented embodiment.

Figure 3 shows an embodiment of the operating structure of the monitoring system according to the present invention.

Referring to FIG. 3 , the data logger module may include a central processing unit 31 such as a microcomputer, whose operation is to be controlled by the central processing unit 31 to the motherboard interface 34 connected to the function selection module. can The temperature information detected in the freezing space may be converted into an electrical signal and transmitted to the data processing unit 35 for processing. Power supply means such as a battery may be disposed inside the data logger module, or vehicle power or other external power may be supplied to the data logger module. Power may be supplied to the data logger module from various types of power sources S, and the present invention is not limited thereto. The power supplied to the data logger module may be supplied by the power conditioning unit 32, and the power conditioning unit 32 has a protective function such as detection of leakage current while allowing a predetermined level of voltage to be supplied to the data logger module. can In addition, the operating status of the data logger module may be monitored by the operating status monitoring unit 33 , and, for example, a connection status with the communication module, whether location information is received, or whether temperature data is received may be monitored. If such a function does not operate, the operating state monitoring unit 33 may generate a warning signal. When the temperature information is detected and transmitted to the data processing unit 35 , it may be compared with the reference data stored in the reference data unit 36 , and the comparison result may be transmitted to the transmission information generating unit 39 . Location information from the GPS module 14 may be transmitted to the information processing unit 38 . The information processing unit 38 may transmit the received position information to the position information data checking unit 37 to confirm whether the time at which the position information and the temperature detection information was obtained coincides. The location information data check unit 37 may have a function of comparing the time of the received location information and the detected temperature information and matching with each other. As such, the temperature information in which the location information and the time information are matched may be transmitted to the data processing unit 35 , and may be compared with the reference data and transmitted to the transmission information generating unit 39 . The transmission information generating unit 39 generates a unique code of the refrigeration vehicle, temperature detection information in which location information and time information are combined, and the difference between the detection temperature and the reference temperature in one data package and monitors it through the wireless communication module 15 . can be sent to the server. And the monitoring server may monitor the state of the frozen space in real time by the received data package.

4 shows an embodiment of a structure in which temperature information is detected in the monitoring system according to the present invention.

Referring to FIG. 4 , the temperature sensor modules 13_1 to 13_N are independently operated by the trigger 42 , and the temperature information obtained from the temperature sensor modules 13_1 to 13_N is detected by the position-time unit 45 . Combined with the location and time of detection information, it is sent to the data processing unit 35 . At least one temperature sensor module (13_1 to 13_N) may be installed in the freezing space, for example, a plurality of temperature sensor modules (13_1 to 13_N) may be disposed at different positions in the freezing space. Each temperature sensor module 13 includes, for example, a base substrate 131 made of a ceramic or similar insulating material having low thermal conductivity; a temperature detection circuit 132 formed on one side of the base substrate 131; and a protective coating 133 for protection of the temperature detection circuit 132. The temperature detection module 13 has, for example, a Resist Temperature Detector (RTD) Pt sensor structure and a 2-wire, 3-wire or 4-wire structure. The temperature sensor module 13 may be electrically connected to the compensation/conversion unit 41 by cables 134a and 134b, and the temperature sensor module 13 by the power circuit 43 ) may be supplied with power required for operation The base substrate 131 may have a rectangular plate shape having a thin thickness, and a detection circuit 132 may be formed on one side of one side of the base substrate 131 . Also, the detection circuit 132 may be a protective coating made of a thin glass material having high thermal conductivity and insulating properties or a similar material, and the detection value is converted into an electric signal and compensated by the cables 134a and 134b. / may be transmitted to the conversion unit 41. The compensation / conversion unit 41 may have a function of amplifying the transmitted detection signal and performing necessary compensation according to humidity or detection conditions. 13_N) can periodically detect the temperature of the freezing space, and can detect the temperature of the freezing space at any time by the trigger 42. The trigger 42 is a temperature detection module 13_1 that operates independently of each other. to 13_N) may have a function of synchronizing the detection times, and temperature information detected at different locations at the same time may be transmitted to the detection code unit 44 via the compensation/conversion unit 44 . The detection code unit 44 may assign a detection code by combining the detection position in the freezing space with the detection temperature and detection time corresponding thereto and transmit it to the data processing unit 35. As described above, Detection information in which the location information may be received by the GPS module and the location-time unit 45 is assigned a detection code may be combined with the location information and stored in memory 46 . Also, the combined information may be transmitted to the monitoring server through the communication module as described above. The temperature sensor modules 13_1 to 13_N may have various structures and are not limited to the presented embodiment.

Although the present invention has been described in detail with reference to the presented embodiments, those skilled in the art can make various modifications and modified inventions without departing from the technical spirit of the present invention with reference to the presented embodiments. . The present invention is not limited by such variations and modifications, but only by the claims appended hereto.

11: Temperature data logger module 12: Refrigeration space
13, 13_1 to 13_N: temperature sensor module 14: GPS module
15: communication module 16: monitoring system
17: operation information module 22: operation selection module
27: communication means 28: storage medium
35: data processing unit 39: transmission information generating unit
42: trigger 45: position-time unit

Claims (3)

a temperature data logger module 11 for acquiring temperature information from at least one temperature sensor module 13_1 to 13_N disposed in the freezing space 12 ;
a GPS module 14 that provides location information to the temperature data logger module 11;
a communication module 15 for enabling wireless communication between the temperature data logger module 11 and the monitoring server 16; and
an operation information module (17) for obtaining information on operation means for operation of the refrigeration space (12);
The temperature data logger module 11 transmits the location information and temperature information of the refrigeration space 12 to the monitoring server 16, and transmits the information according to the monitoring result transmitted from the monitoring server 16 to the operation means. Temperature monitoring system of refrigeration vehicle by multi-channel temperature detection using wireless communication method. The method according to claim 1, wherein the temperature data logger module (11) is an operation selection module (22) for the operation of the temperature sensor module (13_1 to 13_N); a communication means 27 for communicating with the temperature sensor modules 13_1 to 13_N; And the temperature monitoring system of the refrigeration vehicle by the multi-channel temperature detection of the wireless communication method comprising a storage medium (28). The position of claim 1, wherein the temperature sensor modules (13_1 to 13_N) are independently operated by a trigger (42), and the temperature information obtained from the temperature sensor modules (13_1 to 13_N) is detected by a position-time unit (45) and a temperature monitoring system of a refrigeration vehicle by multi-channel temperature detection using wireless communication, characterized in that it is combined with the detection time information and transmitted to the data processing unit (35).

Images