CN110609496A - Cold-chain logistics monitoring terminal and system thereof - Google Patents
Cold-chain logistics monitoring terminal and system thereof Download PDFInfo
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- CN110609496A CN110609496A CN201910336077.9A CN201910336077A CN110609496A CN 110609496 A CN110609496 A CN 110609496A CN 201910336077 A CN201910336077 A CN 201910336077A CN 110609496 A CN110609496 A CN 110609496A
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- parameter value
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
A cold-chain logistics monitoring system comprises a monitoring terminal and a vehicle-mounted terminal in communication connection with the monitoring terminal. The monitoring terminal is used for measuring the environmental parameter data of the cold chain equipment, and judging whether to report back to the vehicle-mounted terminal and whether to delay the next measurement according to the environmental parameter data obtained by each measurement and the comparison result of the time of measurement and the environmental parameter data obtained by the previous measurement and the previous measurement time. The invention further provides a cold-chain logistics monitoring terminal. The invention can properly reduce the measurement and return times and greatly reduce the power consumption of the monitoring terminal.
Description
Technical Field
The invention relates to cold-chain logistics, in particular to an energy-saving monitoring terminal and system for cold-chain logistics.
Background
The monitoring terminals inside the cold-chain logistics vehicle are generally powered by batteries. Because monitoring in cold-chain logistics must be real-time, accurate and complete, but every time monitoring and monitoring data reporting are very power-consuming, battery replacement is required at intervals. However, it is not easy to replace the battery of the monitoring terminal during the logistics process, and if the replacement frequency of the battery is too high, the maintenance cost of the monitoring terminal is increased, and the service life of the monitoring terminal is affected.
Disclosure of Invention
In view of the above, it is desirable to provide a cold-chain logistics monitoring device and a system thereof, which can reduce power consumption of the monitoring device and simultaneously determine whether the monitoring device is operating normally.
The invention provides a cold-chain logistics monitoring terminal, which comprises a wireless radio frequency module, a wireless communication module and a monitoring module, wherein the wireless radio frequency module is used for being in communication connection with a vehicle-mounted terminal; the monitoring terminal comprises a wireless radio frequency module, a sensing unit and a vehicle-mounted terminal, wherein the wireless radio frequency module is used for measuring the environmental parameters at preset first time intervals, and the sensing unit is used for repeatedly measuring the environmental parameters at preset first time intervals, wherein the specific working mode of the monitoring terminal is that after starting, the environmental parameter values measured by the sensing unit and the time during measurement are firstly obtained, and the environmental parameter values measured for the first time and the time during measurement are reported to the vehicle-mounted terminal through the wireless radio frequency module; recording the environmental parameter value reported last time as the environmental parameter value reported back and recording the time reported last time as the time reported back; the first time interval is separated; acquiring the environmental parameter value measured by the sensing unit and the time during measurement; and judging whether to report the acquired environmental parameter value and the acquired time to the vehicle-mounted terminal and whether to adjust the first time interval for the sensing unit measurement interval based on the comparison result of the acquired environmental parameter value and the acquired time with the previous report environmental parameter value and the previous report time.
The invention also provides a cold-chain logistics monitoring system, which comprises a vehicle-mounted terminal; and the monitoring terminal is used for repeatedly measuring the environmental parameter data of the cold chain equipment and reporting the environmental parameter data back to the vehicle-mounted terminal, wherein the vehicle-mounted terminal repeatedly judges whether the environmental parameter data reported by the monitoring terminal is not received within a preset maximum reporting time, and if the environmental parameter data reported by the monitoring terminal is not received within the preset maximum reporting time, the monitoring terminal is alarmed to be abnormal.
Compared with the prior art, the cold-chain logistics monitoring terminal and the system thereof can intelligently adjust the measurement time interval of the monitoring terminal, appropriately reduce the electric energy consumed in time measurement, and ensure the normal operation of the monitoring terminal through a mechanism of regularly returning measurement data to the vehicle-mounted terminal.
Drawings
FIG. 1 is a schematic interior view of one embodiment of a cold-chain logistics vehicle.
Fig. 2 is an architecture diagram of an embodiment of a cold-chain logistics monitoring system.
Fig. 3 is a flowchart illustrating an embodiment of a monitoring terminal.
Fig. 4 is a flowchart illustrating an operation of an embodiment of the vehicle-mounted terminal.
Description of the main elements
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
Referring to fig. 1, an internal schematic view of a cold-chain logistics vehicle 100 in one embodiment of the invention is shown. The interior of the cold-chain logistics vehicle 100 includes a monitoring terminal 120, a cold-chain device 140, and an in-vehicle terminal 160. The in-vehicle terminal 160 is installed in the cold-chain logistics vehicle 100 and is in communication connection with the monitoring terminal 120. The cold chain apparatus 140 is used for storing articles to be distributed at a low temperature and is loaded in the cabin of the cold chain logistics vehicle 100 for transportation. The monitoring terminal 120 is installed in the cold chain device 140, and is configured to monitor environmental parameters, such as temperature and humidity, of the article, and transmit the monitored data to the vehicle-mounted terminal 160. The number of the monitoring terminals 120 and the number of the cold chain devices 140 may be set according to actual requirements.
Referring to fig. 2, an architecture diagram of a cold-chain logistics monitoring system 200 according to an embodiment of the invention is shown. The cold-chain logistics monitoring system 200 includes the monitoring terminal 120 and the vehicle-mounted terminal 160. The monitoring terminal 120 includes a radio frequency module 122, a microprocessor 124, a sensing unit 126, a display unit 128 and a power module 130. The rf module 122, the microprocessor 124, the sensing unit 126, the human interface unit 128 and the power module 130 are electrically connected to each other directly or indirectly, so as to realize data transmission or interaction. The rf module 122 is configured to implement communication connection and data transmission between the monitoring terminal 120 and the vehicle-mounted terminal 160 through a short-range wireless communication technology. In one embodiment, the close range wireless communication technology may include Near Field Communication (NFC), Radio Frequency Identification (RFID) communication, or any other close range wireless communication technology known in the art or developed in the future, including WiFi, bluetooth, ZigBee, and the like. The microprocessor 124 may be an integrated circuit chip having signal processing capabilities. In one embodiment, the microprocessor 124 may be a general-purpose Processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like. The sensing unit 126 is used for measuring environmental parameter data, and the sensing unit 126 may be one or a combination of a temperature sensor, a humidity sensor, a motion sensor, a gas sensor and a position sensor. The human interface unit 128, which is an interface for providing the operation and indication of the monitoring terminal 120, may display the transportation environment information and the audible alarm via a display device. In one embodiment, after the driver of the cold-chain logistics vehicle 100 hears the sound alarm, the driver can take appropriate measures for the emergency according to the information displayed by the display device. The power module 130 may be a button battery or the like, and is used for supplying power to the entire circuit of the monitoring terminal 120.
Referring to fig. 3, in an embodiment, the monitoring terminal 120 is installed in the cold chain apparatus 140, and the working process 300 is as follows:
first, when the cold-chain logistics is started, the driver of the cold-chain logistics vehicle 100 manually activates the monitoring terminal 120 or instructs the monitoring terminal 120 to be activated via the in-vehicle terminal 160.
Next, the monitor terminal 120 performs a first environmental parameter measurement. The following description will be made specifically by taking the measurement of the temperature in the cold chain facility 140 as an example. The monitor terminal 120 records the temperature measured for the first time as the current temperature T1, and records the time measured for the first time as the current time T1.
Subsequently, the monitoring terminal 120 reports the first measured current temperature T1 and the current time T1 to the in-vehicle terminal 160 via the rf module 122, and records the previous reported temperature T0 as T1 and the previous reported time T0 as T1.
In an embodiment, the measurement period of the monitoring terminal 120 is a time interval td, which can be set according to actual requirements, for example, 10 seconds. The monitoring terminal 120 enters a temporary sleep state after completing the measurement data reporting each time, and automatically switches back to the working state after waiting the time interval td.
The monitor terminal 120 then measures the environmental parameters, records the measured temperature as the current temperature T1, and records the time of measurement as the current time T1.
Secondly, the monitoring terminal 120 determines whether the interval between the current time and the previous reporting time is greater than or equal to a preset maximum reporting time tm, i.e., t1-t0> -tm; if yes, returning the measured data, setting the previous return temperature T0 as T1, and setting the previous return time T0 as T1; if not, then determining whether the temperature difference between the current temperature and the last reported temperature is greater than or equal to a preset minimum temperature difference Td that needs to be reported, i.e., | T1-T0| > | Td; if yes, returning the measurement data, setting the previous return temperature T0 as T1, setting the previous return time T0 as T1, and prolonging the measurement time interval td as td 2; if not, the monitoring terminal 120 will not report back, enter the temporary sleep state, and automatically switch back to the working state after waiting for the time interval td. Wherein, the maximum reporting time tm and the minimum temperature difference Td that must be reported can be set according to the actual requirement.
Since the cold chain equipment 140 is used for heat preservation and has the characteristic that the equipment temperature variation is not too severe, the number of times of measurement by the monitoring terminal 120 can be appropriately reduced by extending the measurement time interval td2, assuming that the cold chain equipment 140 has a stable period after the equipment temperature changes. In one embodiment, the value of the time interval td2 can be determined in various ways. For example, td2 ═ max (td, t1-t0-td), td2 ═ max (td, (t1-t0)/2, td2 ═ td, and the like, after the equivalent time interval is changed to td2, the monitor terminal 120 enters a temporary sleep state, and automatically switches back to an operating state after waiting for the time interval td 2.
Finally, after the cold-chain logistics is finished, the driver of the cold-chain logistics vehicle 100 manually stops the monitoring terminal 120 or instructs the monitoring terminal 120 to stop operating via the in-vehicle terminal 160.
Referring to fig. 4, in an embodiment, the vehicle-mounted terminal 160 is installed in the cold-chain logistics vehicle 100, and the working process 400 is as follows:
first, when cold-chain logistics is started, the driver of the cold-chain logistics vehicle 100 manually starts the vehicle-mounted terminal 160 or instructs to start the vehicle-mounted terminal 160 through a management platform in communication connection with the vehicle-mounted terminal 160.
Then, the vehicle-mounted terminal 160 receives the temperature value and the time reported by the monitoring terminal 120 for the first time, and records the received temperature value and time. In one embodiment, the vehicle-mounted terminal 160 may store the temperature value and the time received each time as a record in a storage unit.
Next, the in-vehicle terminal 160 uses the maximum report time tm as a determination criterion for determining whether the monitoring terminal 120 is operating normally. If the maximum reporting time tm does not receive the second reporting of the monitoring terminal 120, alarming that the monitoring terminal 120 is abnormal; otherwise, the temperature value and the time reported by the monitoring terminal 120 are continuously received and recorded. In one embodiment, the alarm may be performed in various manners, such as a buzzer alarm, a short message alarm, an alarm via the human interface unit 128 of the monitoring terminal 120, and so on, so that the cold-chain logistics manager or the driver of the cold-chain logistics vehicle 100 can take corresponding measures in real time.
Finally, after the cold-chain logistics is finished, the driver of the cold-chain logistics vehicle 100 manually stops the vehicle-mounted terminal 160 or instructs the vehicle-mounted terminal 160 to stop operating through the management platform.
To sum up, the monitoring terminal 120 and the cold-chain logistics system 200 thereof utilize the characteristic that the temperature in the cold-chain equipment 140 is not easily changed to preset the maximum reporting time tm and the minimum temperature difference Td that needs to be reported to avoid the monitoring terminal 120 reporting after each measurement is completed, so as to reduce the power consumption of the monitoring terminal 120 when communicating with the vehicle-mounted terminal 160, and the vehicle-mounted terminal 160 can also utilize the preset maximum reporting time tm to monitor whether the monitoring terminal 120 is operating normally. By dynamically adjusting the periodic measurement time interval of the monitoring terminal 120 in the cold-chain logistics, the measurement times are properly reduced, so as to greatly reduce the power consumption of the monitoring terminal 120 and reduce the equipment maintenance cost of the cold-chain logistics.
It should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. The utility model provides a cold chain logistics monitor terminal which characterized in that, this monitor terminal includes:
the wireless radio frequency module is used for being in communication connection with the vehicle-mounted terminal; and
the monitoring terminal comprises a sensing unit and a control unit, wherein the sensing unit is used for repeatedly measuring environmental parameters at preset first time intervals, and the specific working mode of the monitoring terminal is as follows:
after starting, acquiring the environmental parameter value measured by the sensing unit and the time during measurement for the first time, and returning the environmental parameter value measured for the first time and the time during measurement to the vehicle-mounted terminal through the wireless radio frequency module;
recording the environmental parameter value reported last time as the environmental parameter value reported back and recording the time reported last time as the time reported back;
the first time interval is separated;
acquiring the environmental parameter value measured by the sensing unit and the time during measurement; and
and judging whether to report the acquired environmental parameter value and the acquired time to the vehicle-mounted terminal and whether to adjust the first time interval for the measurement interval of the sensing unit based on the comparison result of the acquired environmental parameter value and the acquired time with the previous report environmental parameter value and the previous report time.
2. The cold-chain logistics monitoring terminal of claim 1, wherein the monitoring terminal performing the determining whether to report the obtained environmental parameter value and time to the vehicle-mounted terminal based on the comparison result of the obtained environmental parameter value and time with the previous report environmental parameter value and the previous report time, and whether to adjust the first time interval for the sensing unit measurement interval comprises performing the following operations:
if the time interval between the acquired time and the previous return time is greater than or equal to a preset maximum return time, returning the acquired environmental parameter value and the acquired time to the vehicle-mounted terminal; if the difference value between the acquired environmental parameter value and the previous reported environmental parameter value is greater than or equal to the preset difference value, reporting the acquired environmental parameter value and the time to the vehicle-mounted terminal, and adjusting the first time interval to be a second time interval; if the difference value between the acquired environmental parameter value and the environmental parameter value reported last time is smaller than the preset difference value, no report is made.
3. The cold-chain logistics monitoring terminal of claim 2, wherein the second time interval is greater than or equal to the first time interval.
4. A cold-chain logistics monitoring system, the system comprising:
a vehicle-mounted terminal; and
and the monitoring terminal is used for repeatedly measuring the environmental parameter data of the cold-chain equipment and reporting the environmental parameter data to the vehicle-mounted terminal, wherein the vehicle-mounted terminal repeatedly judges whether the environmental parameter data reported by the monitoring terminal is not received within a preset maximum reporting time, and if the environmental parameter data reported by the monitoring terminal is not received within the preset maximum reporting time, the monitoring terminal is alarmed to be abnormal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018209208846 | 2018-06-14 | ||
| CN201820920884 | 2018-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110609496A true CN110609496A (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910336077.9A Pending CN110609496A (en) | 2018-06-14 | 2019-04-24 | Cold-chain logistics monitoring terminal and system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237512A (en) * | 2021-05-17 | 2021-08-10 | 大冶市古华实业有限公司 | Cold-chain logistics detection system and method |
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Application publication date: 20191224 |