CN205750464U - A kind of wireless remote control system of frozen products insulated container - Google Patents

Abstract

The utility model discloses a wireless remote monitoring system for refrigerated containers, which comprises: a plurality of monitoring terminals; a monitoring platform connected with the monitoring terminals in a wireless communication mode; each monitoring terminal includes; The serial port is connected to collect the state parameters of the refrigerated container; the control module is connected to the serial port access module and used to send control instructions to the refrigerated container; the cache module is connected to the control module to store the refrigerated container collected by the serial port access module The status parameters of the refrigerated container; the positioning module is connected with the control module to obtain the geographic location information of the refrigerated container; the communication module is connected with the control module and used to send the status parameter and geographic location information of the refrigerated container to the monitoring platform and receive the information sent by the monitoring platform control instructions. The utility model is economical and practical, and can be disassembled and assembled conveniently.

Description

A wireless remote monitoring system for refrigerated containers

technical field

The utility model relates to a wireless remote monitoring system, in particular to a wireless remote monitoring system for refrigerated containers, in particular to a wireless remote monitoring system suitable for refrigerated containers on wharf yards and ocean freighters.

Background technique

Refrigerated containers must be managed according to the temperature specified by the cargo owner during the storage and transportation process, and regular inspections are required by dock operators and electricians on board. The traditional inspection method is that the inspectors carry the record book next to the refrigerator, or Record the temperature of each refrigerated container by climbing the ladder. If the transport temperature specified by the owner does not meet or the refrigerated container is found to be working abnormally, notify the relevant personnel to check and repair it. This kind of inspection method not only has a long cycle, low efficiency, and the accuracy of data is difficult to guarantee, but more importantly, the complex operation process of the yard or the harsh weather environment at sea will cause hidden dangers to the safety of the staff.

At present, in the field of ship and terminal refrigerated container monitoring, it is relatively mature to use power line carrier modulators to establish a unified remote monitoring refrigerated container system. The REFCON system of American YORK Company has the highest market share in this field. Its principle is that after the refrigerated container enters the terminal yard or is hoisted onto the ship, the staff connects it to the power line to supply power. During the power supply process, the power line carrier modulator collects the temperature and humidity information of the refrigerated container and transmits it back to the terminal or freighter through the power line. The REFCON system analyzes and displays the data by the REFCON system. However, the system also has certain shortcomings in practical applications: since most refrigerated containers are not equipped with power line carrier modulators, even if the wharf or freighter is equipped with the REFCON system, it cannot achieve full coverage of the wireless monitoring of refrigerated containers. During the inspection process, the work task cannot determine which refrigerated containers are equipped with power line carrier modulators. Therefore, it is still necessary to manually go to the site to inspect one by one. Even if all refrigerated containers of a certain shipping company are equipped with power line carrier modulators, in the actual transportation process, due to the need to transport refrigerated containers of other companies (similar to airline alliances, swapping positions), it will not be fully covered.

Utility model content

The purpose of the utility model is to provide a wireless remote monitoring system for refrigerated containers, which is economical and practical, and can be disassembled conveniently.

In order to achieve the above purpose, the utility model is realized through the following technical solutions: a wireless remote monitoring system for refrigerated containers, which is characterized in that it includes:

Several monitoring terminals collect the state parameters of corresponding refrigerated containers respectively;

The monitoring platform is connected with the monitoring terminal by wireless communication, and is used to remotely view the status parameters of the refrigerated container and send control instructions;

Each monitoring terminal includes;

The serial port access module is connected with the data serial port of the refrigerated container to collect the state parameters of the refrigerated container;

The control module is connected with the serial port access module and is used to send control instructions to the refrigerated container;

The cache module is connected with the control module and is used to store the state parameters of the refrigerated container collected by the serial port access module;

The positioning module is connected with the control module and is used to obtain the geographic location information of the refrigerated container;

The communication module is connected with the control module, and is used to send the status parameters and geographical location information of the refrigerated container to the monitoring platform and receive the control instructions sent by the monitoring platform;

The power supply module is respectively connected with the control module, the positioning module and the communication module to provide electric energy.

The monitoring terminal also includes an indication module, the indication module is respectively connected with the control module and the power module, and the indication module includes a working status indicator light, a power indicator light, a positioning indicator light, and a mobile network indicator Light and WIFI network indicator.

The monitoring terminal also includes an antenna module, the antenna module is respectively connected with the positioning module and the communication module, and is used to amplify the positioning signal of the positioning module and the communication signal of the communication module.

The monitoring platform includes a data receiving and distributing module, a storage server and a human-computer interaction module connected in sequence, and the data receiving and distributing module is used to receive the state parameters of the refrigerated container sent by the monitoring terminal; the storage server uses The state parameters of the refrigerated container received by the storage data receiving and distribution module; the human-computer interaction module is used for authorized users to query and display the state parameters of the refrigerated container and send control instructions.

The state parameters of the refrigerated container include the container number of the refrigerated container, set temperature, set humidity, supply air temperature, return air temperature, humidity, USDA sensor data, and fault codes.

The control instruction includes an immediate return instruction, which is used to specify the refrigerated container to immediately return the state parameters; an interval return instruction, which is used to specify the refrigerated container to return the state parameters within a preset time interval; a switch instruction, used to control the refrigerated container. The compressor of the container is started or stopped; the command of modifying the set temperature is used to change the set temperature of the refrigerated container; the fault diagnosis command is used to obtain the fault code of the controller of the designated refrigerated container, and analyze and diagnose the fault of the designated refrigerated container.

The positioning module is one or a combination of GPS chips and Beidou positioning chips.

The wireless communication method is one or a combination of GPRS, 3G, 4G, WIFI, 433MHz, Bluetooth and 2.4G.

The power module is a rechargeable lithium battery.

Compared with the prior art, a wireless remote monitoring system for refrigerated containers of the utility model has the following advantages: since the monitoring terminal can collect the container number of the refrigerated container, the monitoring terminal does not need to be coupled with the refrigerated container to achieve full coverage; the monitoring terminal has an independent The battery power supply capacity of the refrigerated container is conveniently installed on the data output serial port of the refrigerated container, and the refrigerated container can be monitored wirelessly; the state parameters of the refrigerated container collected by the monitoring terminal are transmitted to the monitoring platform through wireless communication, and communicated with the freighter or the yard. The integration of the monitoring system realizes the one-to-one correspondence between refrigerated containers and container locations, realizes the visual wireless monitoring of refrigerated containers, and various wireless communication connection modes ensure the feasibility of data return; through the human-computer interaction module, the staff and duty personnel The status of the stored refrigerated containers can be supervised in the office to realize wireless inspection, and the inspection data can be integrated into the yard management system at the same time; means to notify the relevant responsible persons for emergency response and realize the abnormal alarm function; the positioning module can obtain the location of the refrigerated container, combined with the status parameters of other refrigerated containers, provide services to customers or superior departments through Web services, so that customers or superiors The department clearly knows the transportation status and location of the goods it belongs to, and realizes the visual and transparent management of the cold chain process.

Description of drawings

Fig. 1 is the structural representation of refrigerated container;

Fig. 2 is the structural block diagram of the wireless remote monitoring system of the refrigerated container of the present invention;

3 is a schematic diagram of the overall structure of the monitoring terminal;

4 is a schematic diagram of the overall structure of the indicating module;

Fig. 5 is a schematic diagram of the communication link in each working mode of the wireless remote monitoring system of the refrigerated container of the present invention;

Fig. 6 is a working schematic diagram of the wireless remote monitoring system in ZigBee ad hoc network mode.

detailed description

The utility model will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

As shown in FIG. 1 , the working panel 100 of the refrigerated container 10 mainly includes a fan 101 , a working group 102 and a data serial port 103 for downloading data. The above components are standard components of the refrigerated container 100 .

As shown in Figures 2 and 3, a wireless remote monitoring system for refrigerated containers includes: a number of monitoring terminals 200, which respectively collect state parameters corresponding to refrigerated containers. The state parameters include but are not limited to the container number, setting Temperature, set humidity, supply air temperature, return air temperature, humidity, USDA sensor data, fault codes; the monitoring platform 300 is connected with the monitoring terminal 100 by wireless communication, and is used to remotely check the status parameters and send control of the refrigerated container Instruction; Wherein, each monitoring terminal 200 comprises; Serial port access module 201, is connected with the data serial port 103 of refrigerated container, to collect the status parameter of refrigerated container; Control module 202, is connected with described serial port access module 201, uses To send control instructions to the refrigerated container; cache module 203 (Flash flash memory), connected to the control module 202, for storing the state parameters of the refrigerated container collected by the serial port access module 201; positioning module 204, connected to the described The control module 202 is connected to obtain the geographic location information of the refrigerated container; the communication module 205 is connected to the control module 202 and used to send the status parameters and geographic location information of the refrigerated container to the monitoring platform 300 and receive the monitoring platform 300. The control command; the power module 206 is respectively connected with the control module 202, the positioning module 204 and the communication module 205 to provide electric energy; the charging interface 209 is used to charge the power module 206, and the power module 206 is a rechargeable lithium battery , with power management functions.

In this embodiment, as shown in Fig. 2 to Fig. 4, the monitoring terminal 200 further includes an indication module 207, and the indication module 207 is respectively connected with the control module 202 and the power module 206, and the The indication module 207 includes a working status indicator 2071, a power indicator 2072, a positioning indicator 2073, a mobile network indicator 2074 and a WIFI network indicator 2075; preferably, when the working status indicator 2071 is a green light It means that the monitoring terminal 200 establishes contact with the controller of the refrigerated container 10. In other implementations, the displayed color can be set. When the power indicator 2072 is green, it means that the power is greater than 30%, and when the red light is on, it means that the power is greater than 30%. Brightness is less than 30%, and the positioning indicator light 2073 indicates that the positioning module can search for satellites to realize the positioning function. When the 2075 green light is on, it means that wireless network communication can be realized if the wireless network is found.

In this embodiment, as shown in FIG. 2 and FIG. 3 , the monitoring terminal 200 also includes an antenna module 208, and the antenna module 208 is respectively connected to the positioning module 204 and the communication module 205 for amplifying the positioning module. The positioning signal of 204 and the communication signal of the amplified communication module 205.

In this embodiment, as shown in FIG. 2 , the monitoring platform 300 includes a sequentially connected data receiving and distributing module 301, a storage server 302, and a human-computer interaction module 303, and the described data receiving and distributing module 301 is used for Receive the status parameters of the refrigerated container sent by the monitoring terminal 200; the storage server 302 is used to store the status parameters of the refrigerated container received by the data receiving and distribution module 301; the human-computer interaction module 303 is used for authorized user query And display the status parameters of the refrigerated container and send control instructions. The storage server 302 can also be a cloud storage server, which is convenient for users to download and view. The control instructions include but are not limited to the immediate return instruction, which is used to specify the refrigerated container to return the state parameters immediately; the interval return instruction, which is used to specify the refrigerated container to return the state parameters within the preset time interval; The compressor of the container is started or stopped; the command of modifying the set temperature is used to change the set temperature of the refrigerated container; the fault diagnosis command is used to obtain the fault code of the controller of the designated refrigerated container, and analyze and diagnose the fault of the designated refrigerated container.

In this embodiment, the positioning module 204 is composed of a GPS positioning chip or a Beidou positioning chip, and is used to obtain the location information of the refrigerated container.

In this embodiment, the communication module 205 has a mobile wireless communication network (GPRS network, 3G network, 4G network) access function, a WIFI network (mainly an enterprise internal local area network) access function, a 433MHz network (suitable for low Power consumption ZigBee ad hoc network) access function, 2.4G network (suitable for low power consumption RFID data output) access function. In some other embodiments, it may also be a bluetooth module for data transmission.

In this embodiment, the power module 206 is composed of a rechargeable lithium battery and has a power management function. In the non-working state, it will sleep except for the low-power 433MHz and 2.4G network, and can be used according to the frequency of monitoring once per hour. 50 days, to meet the monitoring of the long-term ocean transportation process.

The working process of the wireless remote monitoring system includes:

S1. Several monitoring terminals respectively collect state parameters of corresponding refrigerated containers.

When the refrigerated container enters the dock yard or the container space of the freighter during the operation, the staff first connects the power supply to the refrigerated container, starts the operation, and then inserts the serial port access module of the monitoring terminal to the data serial port of the refrigerated container, and then Observe the signal light. When the working status indicator light is green, it means that the equipment has established contact with the controller of the refrigerated container. When the power indicator is green, it means that the power is greater than 30%, and when the red light is on, it means that the power is less than 30%. The light indicates that the positioning module can search for satellites to realize the positioning function. When the mobile network indicator light is green, it means that the mobile network signal can be searched to realize wireless communication. When the WIFI network indicator light is green, it means that the wireless network can be realized. wireless network communication. Check whether the green lights of the working status indicator light 26, the battery indicator light 27, and the positioning indicator light 28 are on. If not all lights up, check to see if the device is plugged in or out of battery. If all lights are on, go to step S2.

S2. Obtain the wireless communication connection mode between the monitoring terminal and the monitoring platform, check whether the corresponding indicator light is on, the wireless communication connection mode includes a mobile wireless network connection mode, and the monitoring terminal and the monitoring platform adopt mobile Wireless network connection, WIFI network connection mode, described monitoring terminal and described monitoring platform adopt WIFI network connection, radio frequency identification network connection mode, described monitoring terminal and described monitoring platform adopt radio frequency identification network connection, ZigBee automatically Network connection mode, the monitoring terminal and the monitoring platform are connected by ZigBee ad-hoc network; if the mobile wireless network connection mode is selected, check whether the mobile network indicator is green, and if the WIFI network connection mode is selected, check Whether the WIFI network indicator is green or not, if you choose the radio frequency identification network connection mode and the ZigBee ad hoc network connection mode, no further inspection is required.

S3. The monitoring platform receives the state parameters of the refrigerated containers collected by the monitoring terminal, and stores and displays the state parameters of the refrigerated containers.

S4. Send a control instruction to the refrigerated container through the monitoring platform, and the refrigerated container performs corresponding operations. The control instruction includes an immediate return instruction, which is used to specify the refrigerated container to immediately return the state parameters; an interval return instruction is used to specify the refrigerated container. The container returns status parameters within a preset time interval; the switch command is used to control the compressor of the refrigerated container to start or stop; the modification set temperature command is used to change the set temperature of the refrigerated container; the fault diagnosis command is used to obtain Specify the fault code of the controller of the refrigerated container, and analyze and diagnose the fault of the specified refrigerated container.

S5. The monitoring platform publishes the state parameters of the refrigerated containers through the Internet, and is used for authorized users to query the state parameters of the refrigerated containers.

In the embodiment of the present utility model, 5 ways of data collection for wireless monitoring are supported. Except for the instructions specified, the data generally collected includes the container number, set temperature, set humidity, air supply temperature, Return air temperature, humidity, and USDA sensor data are collected and transmitted to the monitoring platform. In particular, since the data collected by the monitoring terminal includes the container number of the refrigerated container, there is no coupling relationship between the monitoring terminal and the refrigerated container, that is, any monitoring terminal can be inserted into the data serial port of any refrigerated container.

Mode 1: The monitoring terminal 200 is connected to a mobile wireless network (GPRS network, 3G network, 4G network), and is connected to the mobile base station 400 to access the Internet to transmit data to the data receiving and distributing module 301 .

Mode 2: The monitoring terminal 200 adopts the WIFI network connection mode, and connects to the internal LAN of the enterprise by connecting to the wireless AP 500 to transmit data to the data receiving and distributing module 301 .

Mode 3: The monitoring terminal 200 adopts the radio frequency identification network connection mode (2.4G low-power RFID data output mode), then the staff can hold the hand-held terminal 600 with a 2.4G reading head to conduct inspections, and collect data during the inspection process. data. The 2.4G RFID data output distance is 10-30 meters according to different site environments, which can avoid the need for the staff to climb up and down during the original inspection (generally stack 3 layers during the operation of refrigerated containers), and walk directly along the aisle of the container Data can be collected in one lap. After the data is collected by the handheld terminal 600, the data can be transferred to the data receiving and distributing module 301 through a data line, a mobile network, a local area network, and the like.

Mode 4: The monitoring terminal 200 adopts the radio frequency identification network connection mode (2.4G low-power RFID data output mode), and the drone 700 with a 2.4G reading head can also conduct inspections and collect data during the inspection process. The 2.4G RFID data output distance is 10-30 meters according to different site environments, and the UAV 700 can fly around along the aisle of the box to collect good data. After the UAV 700 has collected the data, it can transfer the data to the data receiving and distributing module 301 through data lines, mobile networks, local area networks, and other means.

Mode 5: When the monitoring terminal 200 adopts the ZigBee ad hoc network connection mode, the monitoring terminal 200 is regarded as a terminal device in the ZigBee ad hoc network, and the collected data is transmitted to the nearby routing node 801, and the routing node 801 is based on different site environment data The collection and transmission distance is 30-70 meters. Each routing node sequentially transmits data to the coordinator 802, and the coordinator 802 transmits the data to the data receiving and distributing module 301 through a mobile network, a local area network, and the like.

As shown in Figure 6, when the monitoring terminal 200 adopts the ZigBee ad hoc network connection mode, the refrigerated containers 10 are piled up in rows and stored on the bins, and routing nodes 801 are installed on both sides of each row of bins, and the routing nodes 801 collect good data Afterwards, the relay transmission of data is carried out according to the direction shown in the figure, and finally transmitted to the coordinator 802, and the coordinator 802 transmits the data to the data receiving and distributing module 301 through a mobile network, a local area network, and the like.

After the data is transmitted to the data receiving and distributing module 301, the received data can be saved to the storage server 302 through the local area network, and the data can be further distributed to the superior department or customers through the Internet. The storage server 302 supports the human-computer interaction module 303 The operation of the container number corresponds to the cargo location one by one and the received data is displayed in a visual way to realize the wireless monitoring of the refrigerated container. Since the collected monitoring data contains the container number, and there is container location information in the ship map of the freighter or the yard management system of the yard, the correlation of the container number can realize the one-to-one correspondence between the container number and the cargo location . Through the human-computer interaction module 303, the staff can see at a glance whether the current state of the refrigerated container of a certain container number placed on a certain container position is normal.

When the refrigerated container 10 enters the next transportation link, the staff first unplugs the monitoring terminal 200, and then unplugs the power supply of the refrigerated container 10 to complete the operation process of this link.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions of the present utility model will be obvious to those skilled in the art after reading the above content. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims (9)

1. the wireless remote control system of a frozen products insulated container, it is characterised in that comprise:

Several monitor terminals, gather the state parameter of corresponding frozen products insulated container respectively；

Monitor supervision platform, uses communication to be connected with monitor terminal, for remotely checking the state parameter of frozen products insulated container And transmission control instruction；Wherein

Each monitor terminal comprises；

Serial ports AM access module, is connected with the digital serial port of frozen products insulated container, to gather the state parameter of frozen products insulated container；

Control module, is connected with described serial ports AM access module, for sending control instruction to frozen products insulated container；

Cache module, is connected with described control module, for storing the shape of the frozen products insulated container that serial ports AM access module collects State parameter；

Locating module, is connected with described control module, for obtaining the geographical location information of frozen products insulated container；

Communication module, is connected with described control module, for sending the state parameter of frozen products insulated container, geography to monitor supervision platform The control instruction that positional information and reception monitor supervision platform send；

Power module, is connected with described control module, locating module and communication module respectively, is used for providing electric energy.

2. wireless remote control system as claimed in claim 1, it is characterised in that described monitor terminal also comprises an instruction Module, described indicating module is connected with described control module and power module respectively, and described indicating module comprises work Status indicator lamp, battery capacity indication lamp, positioning light, mobile network's display lamp and WIFI network display lamp.

3. wireless remote control system as claimed in claim 1, it is characterised in that described monitor terminal also comprises an antenna Module, described Anneta module is connected with locating module and communication module respectively, for amplify locating module framing signal and Amplify the signal of communication of communication module.

4. wireless remote control system as claimed in claim 1, it is characterised in that described monitor supervision platform comprises and is sequentially connected with Data receiver and distribution module, storage server and human-computer interaction module, described data receiver and distribution module are used for connecing Take into custody the state parameter of the frozen products insulated container that control terminal sends；Described storage server is used for storing data receiver and distribution mould The state parameter of the frozen products insulated container that block receives；Described human-computer interaction module is inquired about for authorized user and shows cold preservation The state parameter of container and transmission control instruction.

5. wireless remote control system as claimed in claim 1, it is characterised in that the state parameter of described frozen products insulated container Comprise the case number (CN) of frozen products insulated container, design temperature, setting humidity, wind pushing temperature, return air temperature, humidity, USDA sensing data, event Barrier code.

6. wireless remote control system as claimed in claim 1, it is characterised in that described control instruction comprises and returns immediately Instruction, is used for specifying frozen products insulated container posting status parameter immediately；Interval passback instruction, is used for specifying frozen products insulated container presetting Posting status parameter in time interval；Switch order, for controlling compressor start or the stopping of frozen products insulated container；Amendment sets Temperature instructs, for changing the design temperature of frozen products insulated container；Fault diagnosis instructs, and is used for obtaining appointment frozen products insulated container and controls The failure code of device, and analyze specifying frozen products insulated container to carry out fault diagnosis.

7. wireless remote control system as claimed in claim 1, it is characterised in that described locating module be GPS chip and One in Big Dipper positioning chip or a combination thereof.

8. wireless remote control system as claimed in claim 1, it is characterised in that described communication be GPRS, One in 3G, 4G, WIFI, 433MHz, bluetooth and 2.4G or a combination thereof.

9. wireless remote control system as claimed in claim 1, it is characterised in that described power module is a chargeable lithium Battery.