KR102607777B1 - Apparatus for collecting location information using low-power based on situation of moving object - Google Patents

Abstract

The present invention relates to a low-power location information collection device based on mobile situation awareness. More specifically, in order to ensure smooth logistics work in logistics locations such as ports, management is required for mobile objects such as vehicles, depending on the operating status of the mobile object. The present invention relates to a low-power location information collection device based on situational awareness of moving objects that can be used for long-term management of moving objects while minimizing power consumption by selectively transmitting information about the state of the moving object, including the location. The present invention is attached to a moving object that transports goods in a place where logistics management is required, such as a port, and detects the operating state of the moving object, and only when events such as start and end of operation according to the detection of the operating state and long-time stopping that require location tracking occur. By selectively collecting location information depending on the type of event and selectively communicating with the management server that manages the moving object, it minimizes communication with the location measurement and management server, which consumes high power, while operating with minimal power through the MQTT-based protocol when transmitting data. , it can be used to manage moving objects for a long time without separate charging, thereby increasing convenience of use and supporting efficient management of moving objects.

Description

Low-power location information collection device based on situation awareness of moving objects {Apparatus for collecting location information using low-power based on situation of moving object}

The present invention relates to a low-power location information collection device based on mobile situation awareness. More specifically, in order to ensure smooth logistics work in logistics locations such as ports, management is required for mobile objects such as vehicles, depending on the operating status of the mobile object. The present invention relates to a low-power location information collection device based on situational awareness of moving objects that can be used for long-term management of moving objects while minimizing power consumption by selectively transmitting information about the state of the moving object, including the location.

Recently, in places where logistics management is required, such as ports, the location of moving objects such as vehicles transporting goods is checked and the goods are managed to be efficiently distributed to multiple moving objects to prevent moving objects from being stagnant at a specific location, thereby ensuring efficient logistics management. A logistics management system is provided.

In order to operate this logistics management system, a measuring device for measuring the position of the existing moving object is configured on the moving object, and the measuring device measures the position of the moving object and communicates with a plurality of measuring devices configured for each moving object through a communication network. The location information of the moving object is transmitted to the central server, and the central server determines the location of the moving object based on the location information for each moving object received from the measurement device, and manages the order of loading goods for each moving object to ensure smooth logistics flow. I'm doing it.

However, the existing measuring device has a different supply voltage for each power source configured in the vehicle, making it difficult to use the vehicle's constant power source, so it must be equipped with its own battery.

As a result, the power consumption of the measuring device that measures the position of the moving object in real time or periodically and transmits it to the central server is significant, so not only does it cause the inconvenience of having to periodically charge the battery of the measuring device, but there is also a significant risk of the battery being discharged. Therefore, if the battery is discharged, tracking of moving objects may fail and logistics management may not be properly managed.

Korean Patent No. 10-1105401

The present invention is attached to a moving object that transports goods in a place where logistics management is required, such as a port, and determines the operating state of the moving object through a sensor, transmitting the position of the moving object only when the operating state satisfies preset conditions, thereby transmitting power. By using a protocol that minimizes consumption and power consumption during data transmission, we provide a device that does not require charging through efficient power management and can be used for a long time while providing the location of a moving object reliably. It has a purpose.

A low-power location information collection device based on mobile situation awareness that is attached to a mobile object and operates by recognizing the situation of the mobile object according to an embodiment of the present invention includes a communication unit that communicates through a communication network with a management server that manages the mobile object, and a location of the mobile object. a position measuring unit that measures a position, a power supply unit that provides power, a device that detects whether the moving object is moving and determines the driving state of the moving object, and changes the driving state to the driving state when a specific condition is satisfied among a plurality of preset conditions. Switches from sleep mode to active mode based on a vibration sensor unit that generates a corresponding interrupt signal and an interrupt signal from the vibration sensor unit, and after switching to the active mode, responds to the driving state based on the interrupt signal of the vibration sensor unit. generates an event identifier, determines whether to activate the location measurement unit based on the event identifier and preset setting information, and provides the power to the location measurement unit and the communication unit when activating the location measurement unit is determined. Transmission data according to preset MQTT is generated based on the location information generated through the location measurement unit, the preset device identification information, and the event identifier, and then transmitted to the management server through the communication unit, but the device identification information and the event identifier are transmitted. It may include a control unit that transmits the 2-byte Topic ID included in the transmission data.

As an example related to the present invention, the vibration sensor unit determines the running state of the moving object based on a sensor module that senses whether the moving object is moving and a sensing signal generated by the sensor module, and the running state is determined in advance. It may be characterized by including a control module that generates and transmits an interrupt signal corresponding to the specific condition when a specific condition among the plurality of set conditions is satisfied.

As an example related to the present invention, the sensor module may be configured to include at least one of a gyro sensor and an acceleration sensor.

As an example related to the present invention, it further includes a separation sensor unit that detects magnetic force when attached to the moving object and transmits a detection signal according to non-detection of the magnetic force when separated from the moving object, and the control unit detects the separation sensor unit. Switching to the activation mode upon receiving a signal, activating the communication unit by providing power, and generating transmission data according to the MQTT including an event identifier related to the occurrence of an abnormality and the device identification information preset to correspond to the detection signal. It is transmitted to the management server through the communication unit, and when the transmission of the transmission data is completed, the power provided to the communication unit is cut off and switched to a blocking mode that does not switch to the active mode even when receiving an interrupt signal provided from the vibration sensor unit. When switching to the blocking mode, power is provided to the communication unit to enable follow-up action through communication with the management server, and the communication unit is kept in an activated state while periodically providing power to the location measurement unit to activate it. , Whenever the location measurement unit is activated, the location information generated through the location measurement unit may be transmitted to the management server through the communication unit.

As an example related to the present invention, when the mobile object moves, the vibration sensor unit determines the driving state of the mobile object as a driving start event that satisfies the first condition among the plurality of conditions, and the vibration sensor unit determines a driving start event corresponding to the driving start event. 1 An interrupt signal is transmitted to the control unit, and when the control unit receives the first interrupt signal from the vibration sensor unit, it switches to an activation mode based on the first interrupt signal and activates the communication unit by providing power from the power unit, , Generate transmission data according to the MQTT including a preset event identifier and the device identification information in response to a service start event according to the first interrupt signal and transmit it to the management server through the communication unit, and transmit the transmission data to the management server. When the transmission is completed, the power supply provided to the communication unit is turned off to deactivate the communication unit and then switched to a sleep mode.

As an example related to the present invention, when the vibration sensor unit detects whether the mobile object is moving and is in a stationary state for a preset first time, the driving state of the mobile object is terminated by satisfying the second condition among the plurality of conditions. It is determined to be an event, and a second interrupt signal corresponding to the operation end event is transmitted to the control unit, and the control unit switches to the activation mode based on the second interrupt signal when receiving the second interrupt signal from the vibration sensor unit. After activating the power supply unit by providing power to the location measurement unit, location information is generated through the location measurement unit, and when the location information is generated, the power provided to the location measurement unit is cut off, and then the power supply unit is supplied to the communication unit. Activate by providing power, and transmit data according to the MQTT including an event identifier preset in response to an operation end event according to the second interrupt signal, location information corresponding to the second interrupt signal, and the device identification information. It can be generated and transmitted to the management server, and when the transmission of the transmission data is completed, the power provided to the communication unit is turned off to deactivate the communication unit and then switched to a sleep mode.

As an example related to the present invention, the vibration sensor unit detects whether the mobile object is moving and detects whether the mobile object is in a stationary state for a preset second time from the time the operation end event occurs, and determines the driving state of the mobile object to the plurality of devices. It determines that it is a location tracking event that requires location tracking that satisfies the third condition among the conditions, and transmits a third interrupt signal corresponding to the location tracking event to the control unit, wherein the control unit receives the third interrupt signal from the vibration sensor unit. Upon reception, it switches to an activation mode based on the third interrupt signal, activates the position measurement unit by providing power from the power supply unit, and then generates location information through the location measurement unit, and when generating the location information, the location measurement unit After cutting off the power provided to the communication unit, it is activated by supplying power to the power unit, and includes a preset event identifier corresponding to the location tracking event, location information corresponding to the third interrupt signal, and the device identification information. Generates transmission data according to the MQTT and transmits it to the management server, and when transmission of the transmission data is completed, the power provided to the communication unit is turned off to deactivate the communication unit and then switch to sleep mode. there is.

As an example related to the present invention, a low-power location information collection device based on mobile situation awareness according to an embodiment of the present invention further includes a short-range communication unit for short-range communication with a user terminal, and the control unit receives information from the user terminal through the short-range communication unit. It may be characterized by changing settings based on received input information.

As an example related to the present invention, the power unit is characterized by being configured to include a solar power module that converts sunlight into electric power, and a power module that charges with power provided from the solar power module and provides power. can do.

The present invention is attached to a moving object that transports goods in a place where logistics management is required, such as a port, and detects the operating state of the moving object, and only when events such as start and end of operation according to the detection of the operating state and long-time stopping that require location tracking occur. By selectively collecting location information depending on the type of event and selectively communicating with the management server that manages the moving object, it minimizes communication with the location measurement and management server, which consumes high power, while operating with minimal power through the MQTT-based protocol when transmitting data. , it can be used to manage moving objects for a long time without separate charging, thereby increasing convenience of use and supporting efficient management of moving objects.

1 is a configuration diagram of a low-power location information collection device based on mobile situation awareness according to an embodiment of the present invention.
Figure 2 is a configuration diagram of a low-power location information collection device based on mobile situation awareness according to an embodiment of the present invention.
3 to 5 are diagrams illustrating examples of low-power location information collection operations and data transmission operations according to recognition of the driving status of a moving object by a low-power location information collection device based on situation recognition of a moving object according to an embodiment of the present invention.
Figure 6 is an example of a response operation when leaving a moving object of a low-power location information collection device based on situation awareness of a moving object according to an embodiment of the present invention.

Hereinafter, detailed embodiments of the present invention will be described with reference to the drawings.

Prior to the description of the present invention, the present invention provides a device that supports collecting the location of a moving object such as a vehicle transporting goods that substantially generates the flow of goods in a place where logistics management is required, such as a port, By implementing the device with low power and not requiring a continuous charging process, we aim to provide a device that can be used for a long time and guarantees reliability in collecting the location of moving objects.

Of course, the present invention can be applied to places that require logistics management other than ports and to mobile vehicles that transport goods in those places.

Figure 1 is a configuration diagram of a low-power location information collection device 100 (hereinafter referred to as low-power location information collection device) based on mobile situation awareness according to an embodiment of the present invention, and Figure 2 is a configuration diagram of low-power location information according to an embodiment of the present invention. This is a configuration diagram of the collection device 100.

As shown, the low-power location information collection device 100 may be configured to include a main body, and the main body may operate while attached to a moving object 1, such as a vehicle transporting goods.

In addition, the low-power location information collection device 100 includes a short-range communication unit 110, a communication unit 120, a position measurement unit 130, a vibration sensor unit 140, a departure sensor unit 150, a power unit 160, and It may be configured to include a plurality of components including the control unit 170, and the plurality of components may be configured inside the main body of the low-power location information collection device 100.

In addition, at least one component of the short-range communication unit 110, communication unit 120, position measurement unit 130, vibration sensor unit 140, departure sensor unit 150, and power unit 160 is connected to the control unit 170. Of course, it can be included and configured.

At this time, the control unit 170 may be composed of an MCU (Micro Controller Unit) including a CPU core, memory, and programmable input/output, and may perform the overall control function of the low-power location information collection device 100. there is.

In addition, the short-range communication unit 110 can support short-range wireless communication such as BLE (Bluetooth Low Energy), and the control unit 170 can communicate with the user's user terminal through the short-range communication unit 110.

In addition, the control unit 170 may receive input information for changing the setting value set in the control unit 170 from the user terminal through the short-distance communication unit 110, and based on the input information, the control unit ( 170) settings can be changed.

In addition, the communication unit 120 can communicate wirelessly through a communication network with the management server 200, which manages the operating status of the mobile object 1, including the location of the mobile object 1, and supports various wireless communication methods. You can.

For example, examples of the communication networks include Wireless LAN (WLAN), DLNA (Digital Living Network Alliance), Wibro (Wireless Broadband: Wibro), Wimax (World Interoperability for Microwave Access: Wimax), and GSM (Global System for Mobile). communication), CDMA (Code Division Multi Access), CDMA2000 (Code Division Multi Access 2000), EV-DO (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WCDMA (Wideband CDMA), HSDPA (High Speed Downlink Packet Access) ), HSUPA (High Speed Uplink Packet Access), IEEE 802.16, Long Term Evolution (LTE), LTE-A (Long Term Evolution-Advanced), Wireless Mobile Broadband Service (WMBS), 5G mobile communication services, etc. may be included, and the present invention will be described using the LTE communication method as an example.

In addition, the location measurement unit 130 can measure the location based on GNSS (Global Navigation Satellite System), and the control unit 170 provides location information based on data received through the location measurement unit 130. can be created.

In addition, the power supply unit 160 may provide power to each component constituting the low-power location information collection device 100, and the power supply unit 160 may provide power to the plurality of components under the control of the control unit 170. Power can be selectively provided to components selected by the control unit 170 among the components.

In addition, the vibration sensor unit 140 can detect the running state of the moving object 1, such as movement, stopping, and stopping time, and generate an interrupt signal when the running state satisfies a preset condition.

To this end, the vibration sensor unit 140 detects whether the moving object 1 moves or stops based on the sensor module 141 and the sensing signal generated by the sensor module 141. It may include a control module 142 that generates and transmits an interrupt signal corresponding to the specific condition when a specific condition is satisfied among a plurality of different preset conditions corresponding to a plurality of event types related to the driving state of (1). there is.

At this time, the sensor module 141 may be configured to include at least one sensor selected from an acceleration sensor and a gyro sensor, and the control module 142 may be configured to further include a timer module that counts time. there is.

That is, a plurality of different interrupt signals corresponding to the plurality of different conditions may be preset in the control module 142 of the vibration sensor unit 140, and the control module 142 may be configured to control the plurality of conditions. Among the plurality of conditions, a specific condition that is satisfied is identified based on a sensing signal received from the sensor module 141, and the control unit 170 performs a specific interrupt signal corresponding to the identified specific condition. In order for the control unit 170 to identify the type of event corresponding to the condition, the specific interrupt signal preset in response to the identified specific condition may be transmitted to the control unit 170.

Additionally, event identifiers for each of the plurality of different event types may be set in the control unit 170, and a plurality of different event identifiers and a plurality of different interrupt signals may be matched and set.

According to the above-described configuration, the control unit 170 selectively collects location information only when the occurrence of an event related to the driving state is confirmed based on the interrupt signal for the driving state provided from the vibration sensor unit 140. By selectively communicating with the management server 200 and operating to minimize power consumption of the low-power location information collection device 100, it is possible to support increasing the efficiency of logistics management through management of moving objects, and also operates with low power. Convenience of use can be improved by supporting the use of the low-power location information collection device 100 while attached to a moving object for a long period of time, which will be described in detail with reference to the configuration of FIG. 3.

As shown, the vibration sensor unit 140 includes a sensor module 141 and a control module 142, and can determine the current operating state of the moving object on behalf of the control unit 170.

For example, when movement of the mobile object is detected based on the sensing signal of the sensor module 141, the control module 142 of the vibration sensor unit 140 selects a travel start event of the mobile object among the plurality of conditions. It is determined that the related first condition is satisfied, and a preset first interrupt signal corresponding to the first condition can be generated and transmitted to the control unit 170.

In addition, when the control module 142 does not receive a sensing signal equal to or greater than a preset reference value for a preset first time from the sensor module 141 and the driving state of the mobile object is stopped for the first time, the plurality of Among the conditions, it is determined that the second condition related to the operation end event of the mobile object is satisfied, and a preset second interrupt signal corresponding to the second condition can be generated and transmitted to the control unit 170.

In addition, the control module 142 does not receive a sensing signal greater than a preset reference value from the sensor module 141 for a preset second time period from the time the operation end event occurs by satisfying the second condition, so that the moving object If the driving state of is in a stopped state for the second time, it is determined that a third condition related to a location tracking event requiring location tracking of the moving object is satisfied among the plurality of conditions, and a preset condition corresponding to the third condition is determined. A third interrupt signal can be generated and transmitted to the control unit 170.

As described above, by determining the driving state of the moving object in the vibration sensor unit 140, the load on the control unit 170 can be reduced to minimize power consumption.

Meanwhile, the control unit 170 may operate in a deactivated sleep mode when no interrupt signal is received from the vibration sensor unit 140, and adjusts the power consumption to minimize power consumption in the sleep mode. This high power can be cut off from the power supply unit 160 provided to the communication unit 120 and the position measurement unit 130 and the communication unit 120 and the position measurement unit 130 can be switched to a deactivated state.

To this end, the low-power location information collection device 100 may be configured to further include a plurality of switching modules configured to correspond to the communication unit 120 and the location measurement unit 130, respectively.

At this time, the plurality of switching modules may be included in the power supply unit 160, and the plurality of switching modules may include a first switching module and a second switching module.

Accordingly, the control unit 170 is configured to correspond to the communication unit 120 and controls the first switching module to selectively cut off the power provided to the communication unit 120 to transfer power from the power supply unit 160 to the communication unit ( The second switching module is capable of selectively blocking or providing power provided to the position measuring unit 120 and is configured to correspond to the position measuring unit 130 to selectively block the power provided to the position measuring unit 130. By controlling the power provided from the power supply unit 160 to the position measurement unit 130, it is possible to selectively block or provide power.

Additionally, the control unit 170 may switch from sleep mode to active mode when a specific interrupt signal is received from the vibration sensor unit 140.

In addition, the control unit 170 selects the vibration sensor among a plurality of different event types related to the running state of the mobile object preset in the control unit 170 to correspond to a plurality of interrupt signals preset in the vibration sensor unit 140. A specific event type corresponding to a specific interrupt signal received from unit 140 can be identified.

In addition, a plurality of different event identifiers that each match the plurality of different event types may be preset in the control unit 170, and the control unit 170 may identify a specific event type identified in response to the specific interrupt signal. A specific event identifier corresponding to can be identified.

In addition, the control unit 170 may be preset with setting information in which a setting value for whether or not to activate the location measuring unit 130 is preset for each of a plurality of different event identifiers.

Accordingly, the control unit 170 compares the identified specific event identifier with the setting information and determines whether the location measuring unit 130 preset in the setting information corresponding to the specific event identifier in the setting information is activated. You can check.

In addition, when the control unit 170 is set to a first setting value for activating the position measuring unit 130 in the setting information corresponding to the specific event identifier, the position measuring unit 130 according to the first setting value. The position measuring unit 130 can be activated by providing power to the power supply unit 160, and a second setting value for deactivating the position measuring unit 130 is added to the setting information corresponding to the specific event identifier. When set, the position measuring unit 130 may not be activated according to the second setting value, and the power provided to the position measuring unit 130 may remain cut off.

In addition, when the control unit 170 activates the position measuring unit 130 based on the specific event identifier and the setting information, the control unit 170 provides current location information about the current location of the moving object through the position measuring unit 130. can be created.

At this time, the GNSS-based position measurement unit 130 uses AssistNow (u-Blox GNSS function), through which the module can count and maintain the last sync with the satellite, so that the position after being activated by the control unit 170 The time it takes to understand information can be minimized, and thus power consumption can be minimized.

In addition, after switching to the activation mode, the control unit 170 includes current location information selectively collected according to the setting information and the specific event identifier, preset device identification information of the low-power location information collection device 100, and the Transmission data can be generated according to MQTT (Message Queuing Telemetry Transport) preset based on a specific event identifier.

At this time, the control unit 170 may include the device identification information and the event identifier in a Topic ID of 2 bytes in size included in the transmission data.

In addition, when the control unit 170 is switched to the activation mode, it can activate the communication unit 120 by providing power to the communication unit 120, and send the transmission data through the communication unit 120 to the management server ( 200).

That is, since it is difficult to reduce the power consumption of the communication unit 120 supporting LTE communication, the present invention adopts MQTT, a low-power communication protocol.

MQTT is a communication protocol designed to be more suitable for the IoT (Internet of Things) environment than REST API/HTTP, which is widely used in existing systems. When transmitting the same data, MQTT is about 0.7 seconds faster than REST API, and the size of the transmitted data is It is about 10% smaller.

Therefore, when using MQTT, it can operate with approximately 22% lower power consumption than REST API. In addition, the low-power location information collection device 100 according to the present invention further modifies MQTT and changes the Topic ID written as an existing string to a 2-byte alias, which allows less power to be used.

As described above, the low-power location information collection device 100 according to the present invention reduces power consumption by selectively activating the location measurement unit 130 and the communication unit 120 only when location collection is necessary depending on the operating state of the moving object. It can be operated to minimize and increase the efficiency of collecting location information about a moving object so that it can be used for a long time. This will be explained in detail through the following examples based on the above-described configuration.

First, as shown in FIG. 4, when the first interrupt signal related to a travel start event for the start of operation of the mobile object is received from the vibration sensor unit 140, the first interrupt signal You can switch to activation mode based on .

In addition, after switching to the activation mode, the control unit 170 identifies the first event type for the travel start event that is preset in response to the first interrupt signal based on the first interrupt signal, and the identified first event type 1 A preset first event identifier corresponding to the event type can be identified.

Additionally, the control unit 170 may determine the current driving state of the mobile object as a travel start event, which is a state in which the mobile object starts driving, based on the first event identifier identified in response to the first interrupt signal.

In addition, the control unit 170 activates the communication unit 120 by providing power from the power unit 160 when confirming the operation start event, and the first event identifier and the preset preset corresponding to the operation start event are activated. Transmission data according to the MQTT including the device identification information is generated and transmitted to the management server 200 through the communication unit 120, and when transmission of the transmission data is completed, power provided to the communication unit 120 The communication unit 120 can be deactivated by blocking and then switched to sleep mode.

At this time, the setting information set in the control unit 170 may be set as a second setting value that matches the first event identifier to deactivate the location measuring unit 130, and accordingly, the control unit 170 may set the second setting value to the first event identifier. 1 Without activating the location measurement unit 130 based on the first event identifier identified in response to an interrupt signal and the setting information, only the device identification information and the first event identifier are included in the transmission data to the management server It can be sent to (200).

In addition, as shown in FIG. 5, the control unit 170 sends the second interrupt signal when a second interrupt signal related to an operation end event for the end of operation of the mobile object is received from the vibration sensor unit 140. You can switch to activation mode on a basic basis.

In addition, after switching to the activation mode, the control unit 170 identifies a preset second event type corresponding to the second interrupt signal based on the second interrupt signal, and responds to the identified second event type. A preset second event identifier may be identified.

In addition, the control unit 170 determines the current driving state of the mobile object based on the second event identifier identified in response to the second interrupt signal, and maintains the current driving state of the mobile object for a preset first time. It can be judged to be an operation end event in which the moving object is in a stopped state.

At this time, the setting information set in the control unit 170 may be set as a first setting value that matches the second event identifier to activate the location measuring unit 130, and accordingly, the control unit 170 may set the first setting value to activate the location measuring unit 130. 2 The position measuring unit 130 may be activated based on the second event identifier identified in response to the interrupt signal and the setting information.

In addition, the control unit 170 activates the position measuring unit 130 by providing power from the power supply unit 160 to the position measuring unit 130 according to the occurrence of the operation end event, and then measures the activated position. Location information can be generated through the unit 130, and when the generation of the location information is completed, the power of the power supply unit 160 provided to the location measurement unit 130 is turned off to It can be disabled.

In addition, the control unit 170 provides power from the power unit 160 to the communication unit 120 when generating location information corresponding to the second interrupt signal (or the operation end event) to activate the communication unit 120. and generate transmission data according to the MQTT including location information corresponding to the second interrupt signal (or the service end event), a second event identifier preset in response to the service end event, and the device identification information, It can be transmitted to the management server 200 through the communication unit 120.

In addition, when the transmission of the transmission data is completed, the control unit 170 may cut off the power provided to the communication unit 120, deactivate the communication unit 120, and then switch to a sleep mode to minimize power consumption.

In addition, as shown in FIG. 5, when a third interrupt signal related to a request for tracking the location of the moving object is received from the vibration sensor unit 140, the control unit 170 enters an activation mode based on the third interrupt signal. can be converted to .

In addition, the control unit 170 identifies a third event type preset corresponding to the third interrupt signal based on the third interrupt signal, and generates a third event identifier preset corresponding to the identified third event type. can be identified.

In addition, the control unit 170 determines the current driving state of the mobile object based on the third event identifier identified in response to the third interrupt signal, and determines the current driving state of the mobile object from the time of occurrence of the driving end event. It may be determined as a location tracking event in which the moving object stops for a preset second time and location tracking is required.

At this time, the setting information set in the control unit 170 may be set as a first setting value that matches the third event identifier and activates the location measuring unit 130, and accordingly, the control unit 170 may set the first setting value to activate the location measuring unit 130. 3 The position measuring unit 130 can be activated based on the third event identifier identified in response to the interrupt signal and the setting information.

In addition, the control unit 170 activates the location measurement unit 130 by providing power from the power supply unit 160 to the location measurement unit 130 according to the occurrence of the location tracking event, and then measures the activated location. Location information can be generated through the unit 130, and when the generation of the location information is completed, the power of the power supply unit 160 provided to the location measurement unit 130 is turned off to It can be disabled.

In addition, the control unit 170 provides power from the power unit 160 to the communication unit 120 when generating location information corresponding to the third interrupt signal (or the location tracking event) to activate the communication unit 120. and generate transmission data according to the MQTT, including location information corresponding to the third interrupt signal (or the location tracking event), a third event identifier preset in response to the location tracking event, and the device identification information. It can be transmitted to the management server 200 through the communication unit 120.

In addition, when the transmission of the transmission data is completed, the control unit 170 may cut off the power provided to the communication unit 120, deactivate the communication unit 120, and then switch to a sleep mode to minimize power consumption.

As described above, the present invention is attached to a moving object that transports goods in a place where logistics management is required, such as a port, and detects the operating state of the moving object, starting and ending operation according to the detection of the operating state, and stopping for a long time requiring location tracking. Only when an event occurs, location information is selectively collected depending on the event type and selectively communicated with the management server 200, which manages the moving object, thereby minimizing communication with the location measurement and management server 200, which consumes high power, while transmitting data. By operating with minimal power using the MQTT-based protocol, it can be used to manage mobile objects for a long time without additional charging, thereby increasing convenience of use and supporting efficient management of mobile objects.

Meanwhile, the low-power location information collection device 100 according to an embodiment of the present invention can detect and notify the management server 200 when an abnormality occurs that causes the low-power location information collection device 100 to separate from a moving object. , This will be explained in detail with reference to FIG. 6.

As shown, the separation sensor unit 150 may detect magnetic force when attached to the moving object, and may transmit a detection signal according to non-detection of the magnetic force to the control unit 170 when separated from the moving object.

Accordingly, the control unit 170 switches to the activation mode when receiving a detection signal from the departure sensor unit 150, provides power to the communication unit 120 to activate it, and generates a preset abnormality to correspond to the detection signal. Transmission data according to the MQTT including a related event identifier and the device identification information may be generated and transmitted to the management server 200 through the communication unit 120.

At this time, the abnormal occurrence-related event identifier may be theft information related to theft of the low-power location information collection device 100.

In addition, the control unit 170 blocks the power provided to the communication unit 120 when the transmission of the transmission data is completed and does not switch to the activation mode even when receiving an interrupt signal provided from the vibration sensor unit 140. You can switch to mode.

In addition, when the control unit 170 receives authentication request information including authentication information for user authentication from the user terminal through the short-range communication unit 110 in the blocking mode, the control unit 170 sends the authentication request information to a preset authentication setting. Only when authentication is successful compared to the information can the blocking mode be released and enter sleep mode.

That is, when the low-power location information collection device 100 is separated from the moving object, the control unit 170 determines that an abnormality has occurred and stops the operation of the low-power location information collection device 100, and thereafter performs short-distance communication with the user terminal. By controlling the low-power location information collection device 100 to operate only when user authentication is completed, it is possible to prevent unauthorized use while preventing theft of the low-power location information collection device 100.

In addition, the control unit 170 provides power from the power unit 160 to the communication unit 120 when switching to the blocking mode to enable follow-up action through communication with the management server 200. While maintaining the activated state, power is periodically provided to the position measuring unit 130 to activate it, and whenever the position measuring unit 130 is activated, the location information generated through the position measuring unit 130 Can be transmitted to the management server through the communication unit 120.

At this time, when transmitting the location information in the blocking mode, the control unit 170 generates MQTT-based transmission data including the location information, the event identifier related to the abnormality, and the device identification information to the management server 200. can be transmitted to.

In addition, the control unit 170 maintains the communication unit 120 in an activated state at all times in the blocking mode to receive control information transmitted from the management server 200 through the communication unit 120, and sends the control information to the communication unit 120. Based on this, the transmission cycle of the location information can be changed in the blocking mode, the low-power location information collection device 100 can be deactivated, or the blocking mode can be released and then switched to a sleep mode.

As such, the low-power location information collection device according to an embodiment of the present invention can operate in a blocking mode in a situation where there is a risk of theft due to separation from a moving object, and in the blocking mode, the power of the communication unit is always turned on so that the user or administrator can While providing awareness of the current status, it can also remotely command low-power location collection devices to apply follow-up actions.

Accordingly, the low-power location information collection device according to an embodiment of the present invention operates to continuously announce its location if there is a possibility of finding the low-power location information collection device, or there is a possibility of finding the low-power location information collection device. If it is determined that there is none, it can be operated to reduce meaningless communication traffic by stopping the operation.

Meanwhile, the low-power location information collection device 100 according to an embodiment of the present invention can charge the power supply unit 160 through solar power generation for long-term use, which will be described in detail with reference to the configuration of FIG. 2.

As shown, the power supply unit 160 may include a solar power generation module 161 and a power module 162.

Accordingly, the solar power generation module 161 may be configured to include a solar panel that generates power through sunlight, and the power generated through the solar panel may be transmitted to the power module 162. It can be provided as .

In addition, the power module 162 can be charged with charging power provided from the solar power module 161, and the position measuring unit 130 and the communication unit 120 are selectively controlled by the control unit 170. ) can provide power.

Through the above-described configuration, the period of use of the low-power location information collection device according to the embodiment of the present invention can be further increased.

Components described in embodiments of the present invention include, for example, a storage unit such as memory, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, and a field programmable device (FPGA). One or more general-purpose computers, such as hardware such as a gate array, programmable logic unit (PLU), microprocessor, software containing an instruction set, or a combination thereof, or any other device capable of executing and responding to instructions. It can be implemented using a special purpose computer.

Anyone skilled in the art to which the present invention pertains can make modifications and changes to the above-described content without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

100: Low-power location information collection device
110: short-distance communication unit 120: communication unit
130: Position measuring unit 140: Vibration sensor unit
141: sensor module 142: control module
150: breakaway sensor unit 160: power unit
161: solar power module 162: power module
170: control unit

Claims (9)

A location information collection device that is attached to a moving object and operates by recognizing the situation of the moving object,
a communication unit that communicates with a management server that manages the mobile object through a communication network;
a position measuring unit that measures the position of the moving object;
A power supply unit that provides power;
a separation sensor unit that provides a detection signal when the location information collection device attached to the moving object leaves the moving object;
Sensing the movement or stop of the mobile object and measuring the time, a travel start event in which movement of the mobile object begins, a travel end event in which the mobile object stops for a preset first time, and a travel end event in which the mobile object stops for a second time after the travel end event a vibration sensor unit that determines the status as a location tracking event and generates a different interrupt signal for each event;
A control unit that switches from a sleep mode to an active mode when receiving one of the interrupt signal provided by the vibration sensor unit and the separation detection signal provided by the separation sensor unit,
The control unit switched to the activation mode,
When receiving an interrupt signal corresponding to the operation start event, power is provided to the power unit to the communication unit, and transmission data including an event identifier for the operation start event and device identification information of the location information collection device is generated to transmit the power to the communication unit. transmits to the management server through, and after completing the transmission of the transmitted data, turns off the power of the communication unit and switches to sleep mode,
When receiving an interrupt signal corresponding to the operation end event or the location tracking event, the power of the power unit is provided to the communication unit and the location measuring unit, and an event identifier for the operation end event or location tracking event, the device identification information, and the Generates transmission data including location information measured by the location measurement unit and transmits it to the management server through the communication unit. After completing the transmission of the transmission data, turns off the power of the communication unit and the location measurement unit and switches to sleep mode,
Upon receiving the departure detection signal, the power of the power supply unit is provided to the communication unit, and the abnormal occurrence event identifier and the device identification information according to the separation detection are transmitted to the management server through the communication unit, and then the vibration sensor unit provides Switches to a blocking mode that ignores the reception of an interrupt signal, maintains power to the communication unit to enable remote control according to the management server when switching to the blocking mode, and provides power to the position measuring unit only periodically. A low-power location information collection device based on mobile situation awareness, characterized in that it transmits the measured location information to the management server when provided.
In claim 1,
The vibration sensor unit,
A sensor module that senses whether the moving object is moving; and
It has a timer module that counts time, and has a travel start event in which movement of the mobile object starts based on the sensing signal generated by the sensor module and time information of the timer module, and a travel start event in which the mobile object stops for a preset first time. A mobile device comprising a control module that determines a location tracking event when the mobile device is in a stationary state for a second period of time after the service end event, and generates and transmits different interrupt signals for each event. A low-power location information collection device based on context awareness.
In claim 2,
The sensor module is a low-power location information collection device based on moving object situation awareness, characterized in that it includes at least one of a gyro sensor and an acceleration sensor.
In claim 1,
It further includes a short-distance communication unit that communicates with the user terminal at a short distance,
The control unit is a low-power location information collection device based on mobile situation awareness, characterized in that the control unit releases the blocking mode based on input information received from the user terminal through the short-distance communication unit.
In claim 1,
The power supply unit
Solar power modules that convert sunlight into electricity; and
A power module that charges with the power provided from the solar power generation module and provides power.
A low-power location information collection device based on mobile situation awareness, comprising: delete delete delete delete

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