Waste collection management system

Abstract

We provide a waste collection management system that can improve the accuracy of waste collection data while reducing the burden on workers. [Solution] The garbage collection management system 1 includes a driving information acquisition unit 11 that acquires location information and speed information of the garbage truck 2 at predetermined intervals, and a discrimination unit 12 that determines whether the garbage truck 2 is collecting garbage. The discrimination unit 12 includes a driving determination unit 15 that determines whether the garbage truck 2 repeatedly slows down or travels short distances and stops, and whether the garbage truck 2 continues normal driving for a certain period of time, based on the location information and speed information of the garbage truck 2, and a discrimination unit 16 that determines the garbage truck 2 is collecting garbage if the garbage truck 2 does not continue normal driving for a certain period of time and repeatedly slows down or travels short distances and stops, and determines the garbage truck 2 is not collecting garbage if the garbage truck 2 continues normal driving for a certain period of time.

Description

Technical Field

[0001] The present invention relates to a garbage collection management system.

Background Art

[0002] For example, in Patent Document 1, when receiving a notification of the return of a garbage collection vehicle and the start of garbage collection work from a worker's terminal, the management server separately collects the travel trajectory of the garbage collection vehicle into a trajectory at the time of return (return route) and a trajectory at the time of collection work (collection route), and when receiving a request for transmitting business implementation information from the administrator's terminal, a work vehicle trajectory map is generated by color-coding the return route and the collection route and displaying them on a map, and the work vehicle trajectory map is distributed to the administrator's terminal.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above prior art, since notifications such as the return of the garbage collection vehicle and the start of garbage collection work are made by the judgment and terminal operation of the worker in the garbage collection work, the burden on the worker becomes heavy. Also, if the worker forgets to turn on the power of the terminal, forgets to operate the terminal, or has an operation delay, etc., there will be a lack and variation of garbage collection data such as whether garbage collection is in progress or not, and the accuracy of the garbage collection data will deteriorate.

[0005] An object of the present invention is to provide a garbage collection management system capable of improving the accuracy of garbage collection data while reducing the burden on workers.

Means for Solving the Problems

[0006] (1) One aspect of the present invention is a garbage collection management system for managing the status of garbage collection work by a garbage truck, comprising: an information acquisition unit that acquires location information and speed information of the garbage truck at predetermined intervals; and a determination unit that periodically determines whether the garbage truck is in the process of collecting garbage based on the location information and speed information of the garbage truck acquired at predetermined intervals by the information acquisition unit, wherein the determination unit determines whether the garbage truck is traveling at a predetermined first predetermined speed or less, or whether it is repeatedly traveling at a predetermined predetermined distance or less and stopping the garbage truck. The system includes a driving determination unit that determines whether the garbage truck is traveling at a speed faster than the first specified speed (a second specified speed) or higher for a certain period of time, and a discrimination unit that determines the garbage truck is collecting garbage if the driving determination unit determines that the garbage truck is not traveling at a speed faster than the second specified speed or higher for a certain period of time, and also determines that the garbage truck is traveling at a speed lower than the first specified speed or traveling a distance less than the specified distance and stopping repeatedly, and determines that the garbage truck is collecting garbage if the driving determination unit determines that the garbage truck is not collecting garbage if the driving determination unit determines that the garbage truck is traveling at a speed faster than the second specified speed or higher for a certain period of time.

[0007] In this type of waste collection management system, the system periodically determines whether a garbage truck is collecting garbage based on its location and speed information acquired at set intervals. If it is determined that the garbage truck has not been traveling at a speed above the second specified speed for a certain period of time, and that it is repeatedly traveling at a speed below the first specified speed or traveling less than a specified distance and stopping, then the system determines that the garbage truck is collecting garbage. If it is determined that the garbage truck has been traveling at a speed above the second specified speed for a certain period of time, then the system determines that the garbage truck is not collecting garbage. In this way, the system automatically determines whether a garbage truck is collecting garbage. This eliminates the need for worker judgment and terminal operation, reducing the burden on workers during garbage collection. Furthermore, it reduces the loss and inconsistency of garbage collection data due to workers forgetting to operate terminals, thus improving the accuracy of garbage collection data.

[0008] (2) In (1) above, the determination unit may further include a provisional determination unit that provisionally determines whether the garbage truck is collecting garbage if the driving determination unit determines that the garbage truck is not repeatedly driving at or below a first specified speed or driving at or below a specified distance and stopping, and that the garbage truck is not driving at or above a second specified speed for a certain period of time.

[0009] If a garbage truck is not traveling at or below the first specified speed, or is not repeatedly traveling less than the specified distance and stopping, and is not traveling at or above the second specified speed for a certain period of time, it is difficult to determine whether the garbage truck is collecting garbage. Therefore, when such a situation is determined, a provisional determination is made to suspend the determination of whether the garbage truck is collecting garbage. Then, based on the garbage truck's location and speed information, the determination of whether the garbage truck is collecting garbage is made retrospectively, determining whether the garbage truck was collecting garbage at the time the provisional determination was made.

[0010] (3) In (1) or (2) above, the garbage collection management system further includes a storage unit that stores areas where garbage collection work by garbage trucks is not performed as registered areas, and a location determination unit that determines whether the current location of the garbage truck is within a registered area based on the location information of the garbage truck, and the determination unit may determine that the garbage truck is not collecting garbage when the location determination unit determines that the current location of the garbage truck is within a registered area.

[0011] The registered areas pre-stored in the memory unit are areas where garbage collection by garbage trucks is not performed. Therefore, when it is determined that the garbage truck's current location is within a registered area, it is determined that the garbage truck is not currently collecting garbage, thus quickly determining that the garbage truck is not in the process of collecting garbage. [Effects of the Invention]

[0012] According to the present invention, it is possible to improve the accuracy of waste collection data while reducing the burden on workers. [Brief explanation of the drawing]

[0013] [Figure 1] This is a block diagram illustrating the configuration of a waste collection management system according to one embodiment of the present invention. [Figure 2] This flowchart shows the detailed steps of the discrimination process performed by the discrimination unit shown in Figure 1. [Figure 3] This figure shows an example of the trajectory of a garbage truck displayed on the display shown in Figure 1. [Modes for carrying out the invention]

[0014] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0015] Figure 1 is a schematic block diagram showing the configuration of a waste collection management system according to one embodiment of the present invention. In Figure 1, the waste collection management system 1 of this embodiment is a system that manages the status of waste collection work by a waste collection vehicle 2. The waste collection vehicle 2 is a vehicle also called a garbage truck. The waste collection management system 1 comprises a car navigation system 3, a digital tachograph 4, and a transmitter 5 mounted on the waste collection vehicle 2, and a waste collection management device 6.

[0016] The car navigation system 3 has a GPS receiver and acquires the current location of the garbage truck 2 while it is in motion. Note that the method for acquiring the current location of the garbage truck 2 is not limited to the car navigation system 3; other self-localization techniques, such as SLAM, may also be used.

[0017] The digital tachograph 4 graphs and displays the traveling speed etc. of the garbage collection vehicle 2 when the garbage collection vehicle 2 is traveling. The traveling speed of the garbage collection vehicle 2 is detected by a vehicle speed sensor (not shown). Note that the traveling speed of the garbage collection vehicle 2 may be obtained by calculation from the position data of the garbage collection vehicle 2 obtained by the car navigation 3.

[0018] The transmitter 5 transmits information regarding the traveling of the garbage collection vehicle 2 to the garbage collection management device 6 by wireless communication. The information regarding the traveling of the garbage collection vehicle 2 includes the position information and speed information of the garbage collection vehicle 2. The information regarding the traveling of the garbage collection vehicle 2 is obtained from the car navigation 3, the digital tachograph 4, the CAN, the vehicle standard ICT, etc.

[0019] The garbage collection management device 6 has a receiver 7, a storage unit 8, a display 9, and a server 10.

[0020] The receiver 7 receives the information regarding the traveling of the garbage collection vehicle 2 transmitted from the transmitter 5 of the garbage collection vehicle 2.

[0021] The storage unit 8 stores, as a registration area, an area where the garbage collection work by the garbage collection vehicle 2 is not performed. Examples of the area where the garbage collection work by the garbage collection vehicle 2 is not performed include roads where vehicle congestion frequently occurs and garbage disposal sites. In these areas, a so-called operation similar to that during garbage collection by the garbage collection vehicle 2, in which slow or short-distance traveling of the vehicle and stopping of the vehicle are repeated, is performed.

[0022] The display 9 displays the traveling trajectories of a plurality of garbage collection vehicles 2 on a map screen (see FIG. 3). The display 9 displays the traveling trajectories of the garbage collection vehicles 2 so that the state of garbage collection and normal traveling (described later) are distinguished.

[0023] The server 10 is composed of a CPU, a RAM, a ROM, an input / output interface, etc. The server 10 has a traveling information acquisition unit 11, a discrimination unit 12, and a display control unit 13.

[0024] The driving information acquisition unit 11 acquires information regarding the movement of the garbage truck 2 received by the receiver 7. The receiver 7 and the driving information acquisition unit 11 work together with the car navigation system 3, digital tachograph 4, and transmitter 5 of the garbage truck 2 to form an information acquisition unit that acquires the location information and speed information of the garbage truck 2 at predetermined intervals. The location information and speed information of the garbage truck 2 are acquired at predetermined intervals while the ignition key (not shown) is ON.

[0025] The discrimination unit 12 periodically determines whether the garbage truck 2 is collecting garbage based on the location and speed information of the garbage truck 2 acquired at predetermined intervals by the driving information acquisition unit 11. For example, the discrimination unit 12 determines whether the garbage truck 2 is collecting garbage at predetermined intervals. In other words, the discrimination unit 12 determines whether the garbage truck 2 is collecting garbage at the same interval as the time period for acquiring the location and speed information of the garbage truck 2.

[0026] The discrimination unit 12 includes a position determination unit 14, a driving determination unit 15, a discrimination unit 16, and a provisional determination unit 17.

[0027] The location determination unit 14 determines, based on the location information of the garbage truck 2, whether the current location of the garbage truck 2 is within the registered area stored in the storage unit 8.

[0028] The driving determination unit 15 determines, based on the location information and speed information of the garbage truck 2, whether to repeatedly slow down or travel short distances and stop the garbage truck 2, and whether to determine whether the garbage truck 2 will continue to drive normally for a certain period of time.

[0029] Slow driving of garbage truck 2 is when garbage truck 2 travels at or below the predetermined first specified speed. Short-distance travel of garbage truck 2 is when garbage truck 2 travels at or below the predetermined specified distance. Normal driving of garbage truck 2 is when garbage truck 2 travels at or above the second specified speed, which is faster than the first specified speed.

[0030] The discrimination unit 16 determines that garbage truck 2 is collecting garbage if the driving determination unit 15 determines that the garbage truck 2 does not continue normal driving for a certain period of time, and also determines that the garbage truck 2 repeatedly slows down or travels short distances and stops. The discrimination unit 16 determines that garbage truck 2 is not collecting garbage if the driving determination unit 15 determines that the garbage truck 2 continues normal driving for a certain period of time.

[0031] The provisional determination unit 17 makes a provisional determination to suspend the determination of whether the garbage truck 2 is collecting garbage if the driving determination unit 15 determines that the garbage truck 2 does not repeatedly slow down or travel short distances and stop, and also determines that the garbage truck 2 does not continue normal driving for a certain period of time.

[0032] Figure 2 is a flowchart detailing the procedure of the discrimination process performed by the discrimination unit 12. This process is executed when the location information and speed information of the garbage truck 2 are acquired by the driving information acquisition unit 11. Here, for example, if the location information and speed information of the garbage truck 2 are acquired every few seconds, this process will be executed every few seconds.

[0033] In Figure 2, the discrimination unit 12 first determines whether the current location of the garbage truck 2 is within the registered area stored in the storage unit 8, based on the location information of the garbage truck 2 (procedure S101).

[0034] When the discrimination unit 12 determines that the garbage truck 2 is currently located within the registered area, it ultimately determines that the garbage truck 2 is not currently collecting garbage (procedure S102). In this case, it is ultimately determined that the garbage truck 2 is located within the registered area of ​​a waste disposal plant or the like.

[0035] If the discrimination unit 12 determines that the current location of the garbage truck 2 is not within the registered area, it determines, based on the speed information of the garbage truck 2, whether the average speed of the garbage truck 2 in the most recent time period P is equal to or greater than the speed value A (procedure S103). Time period P is, for example, 30 seconds. Speed ​​value A is, for example, 20 km / h.

[0036] If the discrimination unit 12 determines that the average speed of garbage truck 2 in the most recent time P is equal to or greater than the speed value A, it ultimately determines that garbage truck 2 is not currently collecting garbage (procedure S104). In this case, it is ultimately determined that garbage truck 2 has finished its garbage collection work and is driving normally.

[0037] If the discrimination unit 12 determines that the average speed of the garbage truck 2 in the most recent time P is lower than speed value A, it determines whether the final judgment result from the previous cycle was that the truck was not collecting garbage but driving normally, and whether the average speed of the garbage truck 2 in the most recent time P is greater than or equal to speed value B (procedure S105). Speed ​​value B is a value smaller than speed value A, for example, 10 km / h.

[0038] If the discrimination unit 12 determines that the previous final judgment result was that the garbage truck 2 was not collecting garbage but was driving normally, and that the average speed of the garbage truck 2 in the most recent time P was equal to or greater than speed value B, then it finally determines that the garbage truck 2 is not currently collecting garbage (procedure S104).

[0039] If the discrimination unit 12 determines that the previous final judgment result was not during garbage collection but during normal driving, and that the conditions that the average speed of garbage truck 2 at the most recent time P is equal to or greater than speed value B are not met, then it determines whether the average speed of garbage truck 2 at the most recent time Q is equal to or less than speed value C (procedure S106). Time Q is a value smaller than time P, for example, 15 seconds. Speed ​​value C is a value smaller than speed value B, for example, 1 km / h.

[0040] The discrimination unit 12 determines that the garbage truck 2 is currently stopped if it determines that the average speed of the garbage truck 2 in the most recent time Q is less than or equal to the speed value C (procedure S107). However, at this point, it is unclear whether the garbage truck 2 is stopped for garbage collection or stopped while waiting at a traffic light.

[0041] If the discrimination unit 12 determines that the average speed of garbage truck 2 in the most recent time Q is higher than the speed value C, it determines whether the average speed of garbage truck 2 in the most recent time Q is less than or equal to the speed value B (procedure S108).

[0042] The discrimination unit 12 determines that the average speed of garbage truck 2 in the most recent time period Q is less than or equal to speed value B, and then tentatively determines that garbage truck 2 is currently traveling at a low speed (procedure S109). However, at this point, it is unclear whether garbage truck 2 is traveling at a low speed because it is collecting garbage or because of traffic congestion. Note that "traveling at a low speed" here refers to driving slowly or traveling a short distance.

[0043] If the discrimination unit 12 determines that the average speed of garbage truck 2 in the most recent time Q is higher than the speed value B, it determines whether there was a provisional determination result of low-speed travel in the previous (one cycle prior) and whether the average speed of garbage truck 2 in the most recent time P is equal to or greater than the speed value B (procedure S110).

[0044] If the discrimination unit 12 determines that the garbage truck 2 is currently traveling at a low speed, and that the conditions are met, including the previous provisional determination that it was traveling at a low speed and the average speed of the garbage truck 2 in the most recent time P being equal to or greater than speed value B, then it provisionally determines that the garbage truck 2 is currently traveling at a low speed (procedure S109).

[0045] After performing procedure S107 or procedure S109, the discrimination unit 12 determines whether it has been provisionally determined that the vehicle was stopped or moving at a low speed for the entire most recent time period R (procedure S111). Time period R is a value greater than time period P, for example, 2 minutes.

[0046] If the discrimination unit 12 determines that the condition has been met—that the garbage truck 2 has been provisionally determined to be stopped or moving at a low speed for the entirety of the most recent time period R—it makes a final determination that the garbage truck 2 is currently collecting garbage (procedure S112).

[0047] If the discrimination unit 12 determines that the condition of being provisionally determined to be stopped or moving at a low speed for the entire most recent time period R is not met, it determines whether the final determination result from the previous period (1 cycle ago) was that garbage collection was in progress (procedure S113). If the discrimination unit 12 determines that the final determination result from the previous period was that garbage collection was in progress, it finally determines that garbage truck 2 is currently collecting garbage (procedure S112).

[0048] If the discrimination unit 12 determines in step S110 that it previously made a provisional determination that the garbage truck 2 was traveling at a low speed, and that the conditions that the average speed of the garbage truck 2 in the most recent time P is equal to or greater than speed value B are not met, then it provisionally determines that it cannot determine at this time whether or not the garbage truck 2 is collecting garbage, and therefore decides to postpone the determination of whether or not the garbage truck 2 is collecting garbage (step S114).

[0049] Even if the determination unit 12 determined in step S113 that the previous final determination result was that garbage collection was not in progress, it provisionally determines that it cannot determine at this time whether or not garbage truck 2 is in progress, and therefore decides to postpone the determination of whether or not garbage truck 2 is in progress (step S114).

[0050] The discrimination unit 12 executes one of the procedures S102, S104, S112, or S114, and then executes the procedure S101 again. If the discrimination unit 12 determines in procedure S114 to postpone the determination of whether or not garbage truck 2 is collecting garbage, it executes the procedures from S101 onwards again. If it determines that garbage truck 2 is collecting garbage, it retrospectively determines that garbage truck 2 was collecting garbage at the time the determination was postponed.

[0051] Here, the position determination unit 14 executes procedure S101. The driving determination unit 15 executes procedures S103, S105, S106, S108, and S110. The discrimination unit 16 executes procedures S102, S104, S107, S109, S111 to S113. The provisional determination unit 17 executes procedures S107, S109, S111, S113, and S114.

[0052] Returning to Figure 1, the display control unit 13 controls the display unit 9 to display the trajectory of the garbage truck 2 on the display unit 9, based on the location information of the garbage truck 2 acquired by the driving information acquisition unit 11 and the status information of the garbage collection work performed by the garbage truck 2 determined by the discrimination unit 12.

[0053] As shown in Figure 3, the display control unit 13 displays the travel trajectories T of multiple garbage trucks 2 on the map screen 9a of the display unit 9 using lines of different colors. The display control unit 13 displays the travel trajectory T of a garbage truck 2 that is collecting garbage as a solid line (L1) on the map screen 9a, and the travel trajectory T of a garbage truck 2 that is driving normally as a dashed line (L2) on the map screen 9a. This makes it easier to distinguish between the travel trajectory T of a garbage truck collecting garbage and the travel trajectory T of a garbage truck driving normally. Therefore, even if the travel trajectories T of multiple garbage trucks 2 are displayed on a single map screen 9a, visibility can be improved.

[0054] The display control unit 13 displays the travel trajectory T of the garbage truck 2 on the map screen 9a of the display unit 9 as a highly transparent line. By increasing the transparency of the line in this way, overlapping lines are represented on the map screen 9a. Therefore, in garbage collection operations where the garbage truck 2 often travels the same road multiple times, it becomes easier to understand the actual work.

[0055] In this embodiment, based on the location and speed information of the garbage truck 2 acquired at predetermined intervals, it is periodically determined whether the garbage truck 2 is collecting garbage. Here, if it is determined that the garbage truck 2 does not continue normal driving for a certain period of time, and that the garbage truck 2 repeatedly slows down or travels short distances and stops, it is determined that the garbage truck 2 is collecting garbage. If it is determined that the garbage truck 2 continues normal driving for a certain period of time, it is determined that the garbage truck 2 is not collecting garbage. In this way, the determination of whether the garbage truck 2 is collecting garbage is performed automatically. As a result, judgment and terminal operation by workers are unnecessary, so extra work is not created for workers during garbage collection work, and the burden on workers is reduced. Therefore, the work efficiency of workers can be increased. In addition, the accuracy of garbage collection data is improved because the loss and inconsistency of garbage collection data due to workers forgetting to operate terminals is suppressed. Furthermore, since terminals operated by workers are not required, the cost of introducing the service can be reduced.

[0056] Furthermore, in this embodiment, if it is determined that the garbage truck 2 does not repeatedly slow down or travel short distances and stop, and that the garbage truck 2 does not travel normally for a certain period of time, it is provisionally determined that the determination of whether the garbage truck 2 is collecting garbage is suspended. When the garbage truck 2 does not repeatedly slow down or travel short distances and stop, and that the garbage truck 2 does not travel normally for a certain period of time, it is difficult to determine whether the garbage truck 2 is collecting garbage. Therefore, when it is determined that such a situation exists, it is provisionally determined that the determination of whether the garbage truck 2 is collecting garbage is suspended. Then, based on the subsequent location information and speed information of the garbage truck 2, it is determined whether the garbage truck 2 is collecting garbage, and retrospectively whether the garbage truck 2 was collecting garbage at the time the suspension was provisionally determined.

[0057] Furthermore, in this embodiment, when it is determined that the current location of the garbage truck 2 is within a registered area stored in the memory unit 8, it is determined that the garbage truck 2 is not currently collecting garbage. The registered area pre-stored in the memory unit 8 is an area where garbage collection work by the garbage truck 2 is not performed. Therefore, when it is determined that the current location of the garbage truck 2 is within a registered area, it is determined that the garbage truck 2 is not currently collecting garbage, thus quickly determining that the garbage truck is not in a state of collecting garbage.

[0058] It should be noted that the present invention is not limited to the embodiments described above. For example, in the above embodiments, the time period for acquiring the location and speed information of the garbage truck 2 is the same as the time period for determining whether the garbage truck 2 is collecting garbage, but the invention is not limited to such an embodiment. For example, the time period for determining whether the garbage truck 2 is collecting garbage may be longer than the time period for acquiring the location and speed information of the garbage truck 2.

[0059] Furthermore, in the above embodiment, the server 10 of the garbage collection management device 6 has a driving information acquisition unit 11 and a discrimination unit 12, but it is not limited to such a configuration. For example, the functions of the driving information acquisition unit 11 and the discrimination unit 12 may be located in an ECU (Electronic Control Unit) mounted on the garbage truck 2. In this case, the discrimination data from the discrimination unit 12 is transmitted to the garbage collection management device 6, and the driving trajectory T of the garbage truck 2 is displayed on the display unit 9. [Explanation of Symbols]

[0060] 1... Garbage collection management system, 2... Garbage truck, 3... Car navigation system (information acquisition unit), 4... Digital tachograph (information acquisition unit), 5... Transmitter (information acquisition unit), 7... Receiver (information acquisition unit), 8... Memory unit, 11... Driving information acquisition unit (information acquisition unit), 12... Discrimination unit, 14... Position determination unit, 15... Driving determination unit, 16... Discrimination unit, 17... Provisional determination unit.

Claims

1. A garbage collection management system that manages the status of garbage collection operations by garbage trucks, An information acquisition unit that acquires location and speed information of the aforementioned garbage collection vehicle at specified intervals, The system includes a determination unit that periodically determines whether the garbage truck is collecting garbage based on the location information and speed information of the garbage truck acquired at predetermined intervals by the information acquisition unit, The aforementioned discrimination unit is A driving determination unit determines, based on the location and speed information of the garbage truck, whether the garbage truck will travel at or below a predetermined first specified speed or whether it will repeatedly travel at or below a predetermined specified distance and then stop, and whether the garbage truck will continue to travel at or above a second specified speed, which is faster than the first specified speed, for a certain period of time. A garbage collection management system having a driving determination unit that determines when the garbage collection vehicle does not continue to drive at the second specified speed or higher for the specified period of time, and when it determines when the garbage collection vehicle is driving at the first specified speed or lower, or when it is driving a distance less than or equal to the specified distance and stopping, it determines that the garbage collection vehicle is collecting garbage, and when the driving determination unit determines when the garbage collection vehicle is driving at the second specified speed or higher for the specified period of time, it determines that the garbage collection vehicle is not collecting garbage.

2. The garbage collection management system according to claim 1, further comprising a provisional determination unit that provisionally determines whether the garbage collection vehicle is collecting garbage if the determination unit determines that the garbage collection vehicle is not traveling at or below the first specified speed or is not traveling at or below the specified distance and stopping, and that the garbage collection vehicle is not traveling at or above the second specified speed for a certain period of time.

3. A storage unit that stores as registered areas areas where garbage collection work by the aforementioned garbage trucks is not carried out, The system further includes a location determination unit that determines whether the current location of the garbage collection vehicle is within the registered area based on the location information of the garbage collection vehicle, The garbage collection management system according to claim 1, wherein the determination unit determines that the garbage collection vehicle is not currently collecting garbage when the location determination unit determines that the current location of the garbage collection vehicle is within the registered area.

Images