JP2024046555A - Construction Machinery Systems - Google Patents

Abstract

[Problem] To provide a construction machine system that allows easy data read and write operations for a controller when the battery is cut off. [Solution] A protection mechanism 30 is provided that can connect to a battery 10 and an external power source 21 and can switch the power supply source of a controller 40 to either the battery 10 or the external power source 21, and when a mobile terminal 20 and the external power source 21 are connected and the battery 10 and the controller 40 are cut off by a battery cutoff device 50, the protection mechanism 30 switches the power supply source of the controller 40 to the external power source 21 and connects the controller 40 and the mobile terminal 21 so that they can communicate with each other. [Selected Figure] Figure 2D

Description

The present invention relates to construction machinery systems such as hydraulic excavators and wheel loaders.

Construction machinery may be equipped with a battery cutoff device that can easily cut off the connection between various electrical equipment and the battery (for example, the connection to the negative circuit of the battery), and a communication terminal for sending alarm emails in the event of a malfunction and transmitting vehicle operation data for a specified period of time. If a configuration is adopted in which the battery cutoff device cuts off the connection between the battery and all electrical equipment, including the communication terminal, the power supply to the communication terminal will be stopped when the battery is cut off, and services provided by the communication terminal will be halted.

In the battery cutoff device for construction machinery disclosed in Patent Document 1, two systems of switches are provided in the battery cutoff device, and depending on the combination of the switches, power is supplied to all connected electrical equipment, and power is supplied only to the communication terminal. This enables switching between a state in which power is not supplied to all connected electrical equipment, and a state in which power is not supplied to all connected electrical equipment.

JP 2019-107927 A

When performing maintenance work on construction machinery or during development and debugging work, workers may connect a mobile terminal to the in-vehicle network and use the mobile terminal to read and write data from a controller mounted on the vehicle body. When performing this work, it is necessary to start supplying power from the battery to the controller and then start up the controller. If the connection between the battery and the controller inside the driver's seat is cut off by the battery cutoff device, you must first connect the battery and the controller by operating the battery cutoff device located inside the maintenance hatch at the rear of the vehicle, for example. Next, it is necessary to start up the controller and read and write data to the mobile terminal inside the driver's cabin.

By the way, there are two cutoff states by the battery cutoff device of Patent Document 1: a state in which power is not supplied to all electrical equipment, and a state in which power is supplied only to the communication terminal. In either case, the controller and the battery are connection has been cut off. Therefore, in order to start the data reading/writing work of the controller when the battery is cut off, it is necessary to operate the battery cutoff device in the conventional manner. In other words, just to read and write data, it is necessary to operate the battery disconnection device from outside the vehicle to connect the battery and controller, and to start up the controller inside the driver's cabin, making it difficult to start reading and writing data. It takes.

The present invention has been made in view of the problems of the prior art described above, and an object of the present invention is to provide a construction machine system that allows data reading and writing operations of a controller to be easily performed when the battery is cut off.

The present application includes multiple means for solving the above problems, and one example is a construction machine system including a controller connectable to a mobile terminal via a communication line, a battery capable of supplying power to the controller via a power line, and a battery cutoff device for switching between connection and cutoff between the battery and the controller, the battery and an external power source can be connected, and the system includes a protection mechanism capable of switching the power supply source of the controller to either the battery or the external power source, and when the mobile terminal and the external power source are connected and the battery and the controller are cut off by the battery cutoff device, the protection mechanism switches the power supply source of the controller to the external power source and connects the controller and the mobile terminal so that they can communicate with each other.

According to the present invention, it is possible to easily perform data reading and writing operations for the controller even when the battery is cut off, so that the efficiency of data reading and writing operations can be greatly improved.

External configuration diagram of a hydraulic excavator. FIG. 1 is a configuration diagram of a construction machine system according to a first embodiment. FIG. 2 is a schematic configuration diagram of a controller 40 according to the first embodiment. FIG. 2 is a block diagram showing the configuration of a protection mechanism 30 according to the first embodiment. 5 is a flowchart of a process executed by a power supply switching mechanism 33 in the protection mechanism 30 according to the first embodiment. 10 is a flowchart of a process executed by a power supply switching mechanism 33 when a data exchange operation according to the first embodiment is completed. FIG. 11 is a configuration diagram of a construction machine system according to a second embodiment. FIG. 4 is a schematic configuration diagram of a controller 40 according to a second embodiment. FIG. 3 is a block diagram showing the configuration of a protection mechanism 30 according to a second embodiment. 7 is a flowchart of processing executed by the power switching mechanism 33 in the protection mechanism 30 according to the second embodiment. FIG. 2 is a diagram showing an example of a screen displayed on the mobile terminal 20. FIG. 10 is a flowchart of a process executed by a power supply switching mechanism 33 when a data exchange operation according to the second embodiment is completed. FIG. 11 is a configuration diagram of a construction machine system according to a third embodiment. FIG. 4 is a schematic configuration diagram of a controller 40 according to a third embodiment. FIG. 11 is a block diagram showing the configuration of a protection mechanism 30 according to a third embodiment. 7 is a flowchart of processing executed by the power switching mechanism 33 in the protection mechanism 30 according to the third embodiment. 12 is a flowchart of processing executed by the power switching mechanism 33 at the end of data exchange work according to the third embodiment. FIG. 13 is a configuration diagram of a construction machine system according to a fourth embodiment. FIG. 13 is a block diagram showing the configuration of a protection mechanism 30 according to a fourth embodiment. FIG. 13 is a configuration diagram of a construction machine system according to a fifth embodiment. FIG. 3 is a block diagram showing the configuration of a protection mechanism 30 according to a fifth embodiment. 13 is a flowchart of a process executed by a power supply switching mechanism 33 in a protection mechanism 30 according to a fifth embodiment.

The following describes in detail the embodiment of the present invention using a hydraulic excavator as an example of a construction machine with reference to the drawings.

First Embodiment
[Description of FIG. 1]
A construction machine 1, typified by a hydraulic excavator shown in Fig. 1, is shipped from the factory of a construction machine manufacturer and is operated at a work site for civil engineering work, demolition work, completion work, etc. The hydraulic excavator in Fig. 1 includes a lower traveling body 4, an upper rotating body 3 rotatably attached on the lower traveling body 4, a multi-joint type working device 5 attached to the front side of the upper rotating body 3 so as to be capable of downward depression, and an attachment (a bucket in the example of Fig. 1) 2 attached to the tip of the working device 5. Note that although a crawler type is exemplified as the lower traveling body 4, a wheel type may also be used.

[Description of FIG. 2A]
2A is a configuration diagram of a construction machine system according to the first embodiment. In this embodiment, an example will be described in which a mobile terminal 20 has both power supply and communication functions. Among the connection lines in the figure, solid lines indicate power lines (power lines) capable of power supply, dotted lines indicate communication lines (communication lines) capable of data communication, and two-dot chain lines indicate power communication lines (power communication lines) capable of both power supply and data communication.

The system shown in this figure comprises a battery 10, a battery cutoff device 50, a controller 40, and a protection mechanism 30, which are mounted on the construction machine 1. The mobile terminal 20 is a portable tool such as a PC or service tool that can communicate data with an electronic device (e.g., the controller 40) via a wire. The mobile terminal 20 of this embodiment also has a built-in battery (terminal battery 21) that serves as a power source (external power source) that can supply power to the outside (devices other than the mobile terminal 20).

The battery 10 is for supplying power to various electrical devices mounted on the construction machine 1 including the controller 40, and a positive terminal 10a of the battery 10 is connected to the controller 40 by a power line 140. A negative terminal 10b of the battery 10 is connected to ground via a battery cutoff device 50.

[Description of FIG. 2B]
FIG. 2B is a schematic configuration diagram of the controller 40. The controller 40 is, for example, an electronic control unit called an ECU (Electronic Control Unit), and is composed of a microcomputer, etc., and as shown in FIG. 2B, it includes a processor such as a CPU 42 (central processing unit), and a storage device such as a memory ( (not shown) and a communication interface (I/F) 44. The controller 40 is used for various controls of the construction machine 1. Although two controllers 40 are shown in FIG. 2A, the number of controllers 40 is not particularly limited. The controller 40 is connected to a communication interface (I/F) 44 via a communication line 110 etc. when the CPU 42 is receiving power supply from the battery 10, the terminal side battery 21, etc. via the power line 120. Data can be exchanged with the mobile terminal 20 (that is, bidirectional communication becomes possible).

Returning to FIG. 2A, the battery disconnection device 50 is a device that can switch between connection and disconnection between the negative terminal 10b of the battery 10 and the ground. In the following, when the battery disconnection device is disconnected, the negative terminal 10b of the battery 10 is disconnected from the ground (not connected), and when the battery disconnection device is not activated, the negative terminal 10b of the battery 10 is disconnected. 10b is connected to the ground. When the battery disconnection device is shut off, the connection between the battery 10 and the controller 40 via the power line is cut off, and when the battery disconnection device is not activated, the battery 10 and the controller 40 are connected through the power line. That is, the battery disconnection device 50 also has a function of switching between disconnection and connection between the battery 10 and the controller 40 via the power line.

The protection mechanism 30 is a device that switches the power supply source of the controller 40 between the battery 10 and the terminal side battery (external power source) 21 according to predetermined conditions, and switches the communication connection between the controller 40 and the mobile terminal 20 ON/OFF. However, the conditions for switching the power supply source and the communication connection may be different.

A power line (referred to as a battery monitor line) 140 a branched from the power line 140 and connected to the battery 10 and a power communication line 150 of the mobile terminal 20 can be connected to the protection mechanism 30 . The mobile terminal 20 and the protection mechanism 30 are connected by a single power communication line (portable terminal connection line) 150 that is capable of supplying power and communicating data. The power communication line 150 is connected to the terminal-side battery (external power source) 21 of the mobile terminal 20, and power can be supplied from the terminal-side battery 21 via the power communication line 150. Further, the power communication line 150 is connected to a communication interface (not shown) within the mobile terminal 20, and data communication with the mobile terminal 20 via the power communication line 150 is possible.

Note that the protection mechanism 30 does not need to be mounted on the construction machine 1 (vehicle body side), and may be mounted on the mobile terminal 20 side, or may be a device independent from both the mobile terminal 20 and the construction machine 1. It's okay. .

The protection mechanism 30 also has a power line 160 that is connected to the controller 40 and can output power to the controller 40. The power line 160 is connected to the power line 140 downstream of the branch point with the power line 140a, and is connected to the power line 120 downstream of the connection point. The power line 120 is a line for supplying power to the CPU 42 (see FIG. 2B) in each controller 40, and connects the power line 160 to each CPU 42 in parallel. In addition, in order to prevent reverse current flow, the power line 140 and the power line 160 are each equipped with diodes 90a and 90b. When there are multiple controllers 40, it is preferable to connect the protection mechanism 30 and the multiple controllers 40 by the power line 102 in parallel as shown in FIG. 2A. The behavior of the controller 40 (i.e., the process executed by the controller 40) will be described later in FIG. 2B. The controllers 40 are connected to each other by a communication line 110, and the protection mechanism 30 is also connected to the communication line 110. This allows the controller 40 to notify the protection mechanism 30 of the status using the communication line 110.

[Description of FIG. 2C]
2C is a block diagram showing the configuration of the protection mechanism 30. The protection mechanism 30 includes a battery power diagnostic unit 31, an external power supply/communication input unit 32, and a power supply switching mechanism 33.

A battery monitor line 140a branched off from the power line 140 is connected to the battery power diagnostic unit 31 via a connection port (not shown). Based on the power supplied from the battery monitor line 140a, the battery power diagnostic unit 31 diagnoses (determines) whether or not power is being supplied from the battery 10 to the protection mechanism 30, and notifies the power switching mechanism 33 of the diagnosis result. This diagnosis can also determine whether or not the connection to the battery 10 has been cut off by the battery cutoff device 50, and whether or not power is being supplied from the battery 10 to the controller 40.

The power communication line 150 connected to the mobile terminal 20 is connected to the external power supply/communication input unit 32 via a connection port (not shown). Inside the external power supply/communication input unit 32, the power communication line 150 is separated into a power line 150a and a communication line 150b, and the power line 150a and the communication line 150b are each connected to the power supply switching mechanism 33.

The power supply switching mechanism 33 includes a power supply switching determination unit 34 that determines switching between the power supplies (battery 10 and external power supply 21) connected to the protection mechanism 30, and a power supply switching determination unit 34 that determines switching between the power supplies (battery 10 and external power supply 21) connected to the protection mechanism 30, and a power supply line (power line) and communication line within the protection mechanism 30. It is equipped with a power line/communication switching unit 35 that switches between connection and disconnection. Further, a power line 160 and a communication line 110 are connected to the power switching mechanism 33, and the other ends of these two lines 160 and 110 are connected to the controller 40, respectively. Power may be supplied to the power line 160 from the terminal-side battery (external power source) 21, and data exchanged between the controller 40 and the mobile terminal 20 may flow through the communication line 110.

[Description of Figure 2D]
The process executed by the power switching mechanism 33 in the protection mechanism 30 will be described using the flowchart of FIG. 2D. The flowchart in FIG. 2D describes the flow from the connection between the mobile terminal 20 and the protection mechanism 30 to the start of data exchange work between the mobile terminal 20 and the controller 40. Data exchange means reading data stored in the memory in the controller 40 or writing data to the memory, and is performed between the mobile terminal 20 and the controller 40.

When the protection mechanism 30 is mounted on the vehicle body side, the mobile terminal 20 is connected to the protection mechanism 30 via the power communication line (mobile terminal connection line) 150. Note that when the protection mechanism 30 is mounted on the mobile terminal 20 side, the battery monitor line 140a, the power line 160, and the communication line 110 may be connected to the vehicle body side. When the protection mechanism 30 is independent from both the mobile terminal 20 and the vehicle body, the mobile terminal 20 and the protection mechanism 30 may be further connected through the power communication line 150. Note that these also apply to other embodiments.

When the power supply switching determination unit 34 detects connection and activation of the mobile terminal 20 based on the power input via the power line 150a, the flowchart of FIG. 2D is started and S1 is executed. In S<b>1 , the power supply switching determination unit 34 determines whether or not power is being supplied from the battery 10 to the controller 40 based on the diagnosis result input from the battery power supply diagnosis unit 31 . For example, when the battery disconnection device 50 is not activated (for example, when it is determined that power is input from the power line 150a) and when the battery 10 has sufficient power to start the controller 40 (for example, when it is determined that power is input from the power line 150a) (when the power from the battery exceeds a predetermined value), the battery power supply diagnostic unit 31 outputs a diagnosis result of “normal”, and the power supply switching determination unit 34 determines S1 that power is not being supplied from the battery 10 to the controller 40. The answer will be “Yes” indicating that there is. On the other hand, when the battery cutoff device 50 is cut off (for example, when it is determined that there is no power input from the power line 150a), or when the power of the battery 10 is insufficient to start the controller 40 ( For example, if the power from the power line 150a is below a predetermined value), the determination in S1 is "No" indicating that power is not being supplied from the battery 10 to the controller 40.

If S1 is judged as "Yes", proceed to S4A. If S1 is judged as "No", proceed to S2.

In S2, the power supply switching determination unit 34 measures the power of the external power supply 21 based on the power from the power line 150a. After the measurement is completed, the process advances to S3. In S3, the power supply switching determination unit 34 determines whether the external power supply 21 has sufficient power to start the controller 40, based on the measurement result in S2. If the external power supply 21 has sufficient power to start the controller 40 (for example, if the power from the power line 150a exceeds a predetermined value), the determination in S3 is "Yes" and the process advances to S4B. On the other hand, if the power of the external power supply 21 is insufficient to start the controller 40 (for example, if the power from the power line 150a is below a predetermined value), the determination in S3 is "No" and the process proceeds to S5. move on.

In S4B, the power line/communication switching unit 35 connects the power line 150a to the power line 160 to enable power supply from the external power source 21 to the controller 40, and connects the communication line 150b to the communication line 110 to switch to a state in which the controller 40 and the mobile terminal 20 can communicate with each other. Note that at the start of the flow in FIG. 2D, the power line 150a is not connected to the power line 160, and further, the communication line 150b is not connected to the communication line 110.

In S4A, the power line/communication switching unit 35 leaves the power line 150a and the power line 160 disconnected, but connects the communication line 150b and the communication line 110, and allows the mobile terminal 20 and the controller 40 to communicate. make it possible. Note that at this time, the power supply source of the controller 40 is the battery 10.

In this way, the power line/communication switching unit 35 of this embodiment starts the power supply from the external power source 21 or the battery 10 to the controller 40, and switches whether or not communication between the mobile terminal 20 and the controller 40 is possible.

After S4A and S4B are executed, the controller 40 is in an activated state (activation of the controller 40 may be detected by the power supply switching determination unit 34), and S6 is executed. In S6, the power supply switching determination unit 34 sends a command to the mobile terminal 20 to display a screen (ECU activation notification) notifying the mobile terminal 20 that the controller (ECU) 40 has been activated. After confirming on the screen of the mobile terminal 20 that the controller 40 has been activated, the worker can start data exchange work between the controller 40 and the mobile terminal 20.

On the other hand, if the result of S3 is "No," i.e., if the power of the external power source 21 is insufficient to start up the controller 40, then in S5 the power source switching determination unit 34 sends a command to the mobile terminal 20 to display a screen informing the user that the power of the external power source 21 is insufficient (i.e., data communication with the controller 40 is not possible).

[Description of FIG. 2E]
Next, the process executed by the power switching mechanism 33 at the end of the data exchange work will be explained using the flowchart of FIG. 2E. The power supply switching mechanism 33 executes S7 upon receiving from the mobile terminal 20 a data exchange work completion notification that is output when the data exchange work between the controller 40 and the mobile terminal 20 is completed.

If the battery 10 is being used as the power source for the controller 40 during the data exchange operation (i.e., if S1 in FIG. 2D is judged to be "Yes"), the power line/communication switching unit 35 disconnects the communication line 150b from the communication line 110 in S7, rendering the mobile terminal 20 and the controller 40 unable to communicate.

On the other hand, if the external power supply 21 is used as a power source for the controller 40 during the data exchange operation (that is, if the determination is "Yes" in S3 of FIG. 2D), the power line/communication switching unit 35 is switched in S7. The connection between the power line 150a and the power line 160 is cut off, and the power supply to the controller 40 from the external power supply 21 is stopped. Further, the power line/communication switching unit 35 disconnects the communication line 150b and the communication line 110, making the mobile terminal 20 unable to communicate with the controller 40.

After S7 is completed, S8 is executed. In S8, the power supply switching determination unit 34 sends a command to the mobile terminal 20 to display a screen informing the operator that the mobile terminal 20 can be removed from the protection mechanism 30. After checking the screen on the mobile terminal 20, the operator can remove the mobile terminal 20 from the protection mechanism 30.

[effect]
As explained above, in this embodiment, the controller 40 is connectable to the mobile terminal 20 via the communication lines 150, 110, and the battery 10 is capable of supplying power to the controller 40 via the power lines 140, 160. , a construction machine system equipped with a battery cutoff device 50 that switches connection and cutoff between the battery 10 and the controller 40, in which the battery 10 and an external power supply 21 can be connected, and the power supply source of the controller 40 is connected to the battery 10 and the external power supply 21. The protection mechanism 30 is equipped with a protection mechanism 30 that can be switched to either one of the controller 40 and The power supply source was switched to the external power supply 21, and the controller 40 and the mobile terminal 21 were connected to be communicable.

When the system is configured in this manner, even when the battery cutoff device 50 is cut off, the protection mechanism 30 supplies power from the external power source 21 to the controller 40, and further connects the controller 40 and the mobile terminal 20 so that they can communicate with each other. This allows the worker to use the mobile terminal 20 to exchange data with the controller 40 without operating the battery cutoff device 50. In addition, even when the battery cutoff device 50 is not in operation, the data exchange can be performed using the power of the battery 10. In other words, regardless of the operation status of the battery cutoff device 50, the worker can exchange data with the controller 40 using the mobile terminal 20. In other words, according to this embodiment, data reading and writing operations can be easily performed on the controller 40 even when the battery is cut off, so the efficiency of data reading and writing operations can be greatly improved. Furthermore, according to this embodiment, the power supply source for the controller 40 during data reading and writing operations is the external power source 21, so even if the battery 10 is dead or not fully charged, data reading and writing operations can be performed without replacing or charging the battery 10.

Second Embodiment
In the second embodiment, an example will be shown in which power is supplied from a protection mechanism 30 to a controller 40 using a CPU power line 120 and a peripheral device power line 130. Since the basic configuration is similar to the first embodiment, differences will be mainly described.

[Description of FIG. 3A]
FIG. 3A is a configuration diagram of a construction machine system according to the second embodiment.

The protection mechanism 30 is mounted on the construction machine 1, and the battery 10 and the mobile terminal 20 are connected to the protection mechanism 30. The positive terminal 10a of the battery 10 is connected to the protection mechanism 30 by a single power line 140. The mobile terminal 20 and the protection mechanism 30 are connected by a power/communication line (mobile terminal connection line) 150 that allows power supply and data communication.

The protection mechanism 30 is connected to each controller 40 by two power lines 120 and 130. When there are a plurality of controllers 40 as shown in FIG. 3A, the protection mechanism 30 and each controller 40 are connected in parallel to the battery 10 as shown in FIG. 3A. The behavior of the controller 40 will be explained later with reference to FIG. 3B. Each controller 40 is connected by a communication line 110, and the protection mechanism 30 is also connected to the communication line 110.

The negative terminal 10b of the battery 10 is connected to a battery disconnection device 50, and the battery disconnection device 50 connects or disconnects the negative terminal 10b of the battery 10 from the ground. When the battery disconnection device is disconnected, it means that the negative terminal 10b of the battery 10 is not connected to the ground. When the battery disconnection device is not activated, it means that the negative terminal 10b of the battery 10 is connected to the ground.

[Explanation of FIG. 3B]
3B is a block diagram of the controller 40 according to this embodiment. Two power lines 120 and 130 extending from the protection mechanism 30 are connected to the controller 40 according to this embodiment. The power lines 120 and 130 are a CPU power line 120 that supplies power required for starting the CPU 42, and a peripheral power line 130 that supplies power required for the operation of the peripheral devices 43. The peripheral devices 43 include, for example, actuators, sensors, and monitors. The communication I/F 44 is an interface for communicating with other controllers and the mobile terminal 20, and is connected to the communication line 110. The mode detection unit 41 is connected midway between the two power lines 120 and 130, and detects the startup mode of the controller 40, which will be described later, based on the power of each of the power lines 120 and 130.

Controller 40 has two activation modes. The first mode is the normal startup mode. In the normal startup mode, power is being supplied from the battery 10 to the CPU power line 120 and the peripheral device power line 130 via the power line 140, and a controller startup operation (such as a key operation) is input. Then, the controller 40 is activated, and all functions of the controller 40 become operable. However, even if power is being supplied to the CPU power line 120 and the peripheral device power line 130, the controller 40 will not start unless a controller start operation is input. When the mode detection unit 41 detects that power is being supplied to both of the two power lines 120 and 130, it detects that the startup mode of the controller 40 is the normal startup mode.

The second is the power saving mode. In the power saving mode, power is supplied to only the CPU power line 120 of the two power lines 120 and 130, and in this state, the controller 40 is activated without a controller activation operation. The power supply source in the power saving mode is either the battery 10 or the external power supply 21. Since the power saving mode is started with power being supplied only to the CPU 42, usable functions are limited. The functions that can be used are reading data from the memory and writing data to the memory by the CPU 42. In other words, only operations associated with data reading and writing operations using the mobile terminal 20 are possible. When the mode detection unit 41 detects that power is being supplied to the CPU power line 120 and power is not being supplied to the peripheral device power line 130, the startup mode of the controller 40 is the power saving mode. Detected.

The controller 40 can notify the protection mechanism 30 of the status using the communication line 110.

[Description of Figure 3C]
FIG. 3C is a block diagram showing the configuration of the protection mechanism 30 according to this embodiment. The protection mechanism 30 of this embodiment is different from that of the first embodiment and includes a battery power input section 31a.

A power line 140 connected to the battery 10 is connected to the battery power input section 31a via a connection port (not shown). It is preferable that the battery power input section 31a has a protection circuit for preventing power from flowing into the external power source 21. The power line 140 is further connected to the power switching mechanism 33 through the battery power input section 31a.

It is preferable that the external power supply/communication input unit 32 has a protection circuit, similar to the battery power supply input unit 31a.

A power line 120 for the CPU, a power line 130 for peripheral devices, and a communication line 110 are connected to the power switching mechanism 33, and these three lines 120, 130, and 110 are connected to each controller 40.

[Description of Figure 3D]
The process executed by the power switching mechanism 33 in the protection mechanism 30 will be described using the flowchart in FIG. 3D. The flowchart in FIG. 3D describes the flow from the connection between the mobile terminal 20 and the protection mechanism 30 to the start of data exchange work between the mobile terminal 20 and the controller 40.

When the mobile terminal 20 is not connected to the protection mechanism 30 (normally), the power line/communication switching unit 35 connects the power line 140 and the two power lines so that the controller 40 is supplied with power from the battery 10 side. The lines 120 and 130 are connected to each other. As a result, power is output from two systems: the CPU power line 120 and the peripheral device power line 130. In other words, in conjunction with the behavior of the battery cutoff device 50, power from the battery 10 is supplied to the CPU 42 and peripheral devices 43 in the controller 40 during normal times and when the battery cutoff device 50 is not operating. On the other hand, in normal times and when the battery cutoff device 50 is cut off, power from the battery 10 is not supplied to the controller 40. Further, under normal conditions, the communication line 150b and the communication line 110 connected to the controller 40 are not connected. When the power switch determination unit 34 detects connection and activation of the mobile terminal 20 based on the power input via the power line 150a, the flowchart of FIG. 3D is started and S10 is executed. In S<b>10 , the power supply switching determination unit 34 determines whether or not power is being supplied from the battery 10 to the controller 40 based on the power input from the power line 140 . For example, when the battery cutoff device 50 is not operating and the battery 10 has sufficient power to start the controller 40 (for example, when the power from the power line 140 exceeds a predetermined value), the determination in S10 is based on the battery The result is "Yes" indicating that power is being supplied from the controller 10 to the controller 40. On the other hand, when the battery disconnection device 50 is disconnected (for example, when it is determined that there is no power input from the power line 140), or when the power of the battery 10 is insufficient to start the controller 40 (For example, when the power from the power line 140 is less than or equal to a predetermined value), the determination in S10 is "No" indicating that power is not being supplied from the battery 10 to the controller 40.

If the determination in S10 is "Yes", the process advances to S11. If the determination in S10 is "No", the process advances to S13.

In S11, a command to display a screen on the screen of the mobile terminal 20 for selecting whether to use the battery 10 or the external power supply 21 as a power supply source for the controller 40 is sent from the power source switching determination unit 34 to the mobile terminal 20. Send to. FIG. 3E shows an example of a screen displayed on the mobile terminal 20 based on the command. The selection of the power supply source is performed by an operator inputting from the outside using the mobile terminal 20. The result selected by the worker on the screen of the mobile terminal 20 is transmitted from the mobile terminal 20 to the protection mechanism 30 through the mobile terminal connection line 150, and is received by the power switch determination section 34. When the power supply switching determining unit 34 in the protection mechanism 30 receives the selection result in S11, the process proceeds to S12.

In S12, the power supply switching determination unit 34 determines whether or not the battery 10 is to be used as the power supply source for the controller 40, based on the selection result in S11. If "Yes" on the screen of the mobile terminal 20 (the screen in FIG. 3E), that is, the selection result of using the battery 10 is received, the determination in S12 is "Yes" and the process proceeds to S15A. When "No" is received on the screen of the mobile terminal 20, that is, when the selection result of using the external power source 21 is received, the determination in S12 becomes "No" and the process proceeds to S13.

If the answer to S10 is "No," or if the answer to S12 is "No," proceed to S13. In S13, the power source switching determination unit 34 measures the power of the external power source 21 based on the power of the power line 150a. After the measurement is complete, proceed to S14.

In S14, the power supply switching determination unit 34 determines whether the external power supply 21 has sufficient power to start the controller 40 based on the measurement result of S13. If the external power supply 21 has sufficient power to start the controller 40 (for example, if the power from the power line 150a exceeds a predetermined value), the determination in S14 is "Yes" and the process proceeds to S15B. On the other hand, if the power of the external power supply 21 is insufficient to start the controller 40 (for example, if the power from the power line 150a is equal to or less than a predetermined value), the determination in S14 is "No" and the process proceeds to S17.

In S15B, where the external power source becomes the power source, the power line/communication switching unit 35 disconnects the power line 140 from the two power lines 120 and 130, connects the power line 150a to the power line 120 for the CPU, and switches to a state in which power can be supplied from the external power source 21 only to the CPU 42 of the controller 40, and connects the communication line 150b to the communication line 110, thereby switching to a state in which the controller 40 and the mobile terminal 20 can communicate with each other. In other words, the startup mode of the controller 40 is changed to a power saving mode using the external power source 21 as the power source, and the controller 40 is started. Note that, at the start of the flow in FIG. 3D, the power line 140 is connected to the two power lines 120 and 130, and power can be supplied from the battery 10 to both the CPU 42 and the peripheral device 43. In other words, the startup mode of the controller 40 is set to the normal startup mode. Furthermore, power line 150a is not connected to power lines 120 and 130, and communication line 150b is not connected to communication line 110.

In S15A, the power line/communication switching unit 35 switches from a state in which the power line 140 is connected to the two power lines 120 and 130 to a state in which the power line 140 is connected to the CPU power line 120, allowing power to be supplied from the battery 10 only to the CPU 42 of the controller 40, and switches to a state in which the controller 40 and the mobile terminal 20 can communicate with each other by connecting the communication line 150b to the communication line 110. In other words, the startup mode of the controller 40 is changed to a power saving mode powered by the battery 10, and the controller 40 starts up.

In this way, the power line/communication switching unit 35 switches the power supply source (battery 10 and external power source 21) for the controller 40 (CPU 42), switches the power supply destination (CPU 42 and peripheral device 43), and switches the communication between the mobile terminal 20 and the controller 40.

After S15A and S15B are executed, the controller 40 is in an activated state (activation of the controller 40 may be detected by the power supply switching determination unit 34), and S16 is executed. In S16, the power supply switching determination unit 34 sends a command to the mobile terminal 20 to display a screen (ECU activation notification) notifying the mobile terminal 20 that the controller (ECU) 40 has been activated. After confirming that the controller 40 has been activated on the screen of the mobile terminal 20, the worker can start data exchange work between the controller 40 and the mobile terminal 20.

On the other hand, if the determination in S14 is "No", that is, if the power of the external power supply 21 is insufficient to start the controller 40, the power supply switching determination unit 34 determines that the external A command is sent to display a screen informing that the power of the power supply 21 is insufficient (that is, data communication with the controller 40 is impossible).

[Description of Figure 3F]
Next, the process executed by the power switching mechanism 33 at the end of the data exchange work will be described using the flowchart of FIG. 3F. The power supply switching mechanism 33 executes S18 upon receiving from the mobile terminal 20 a data exchange work completion notification that is output when the data exchange work between the controller 40 and the mobile terminal 20 is completed.

If the battery 10 is used as a power source for the controller 40 during the data exchange operation (that is, if the determination is "Yes" in S12 of FIG. 3D), the power line/communication switching unit 35 switches the power line 140 to the power line 140 in S18. and the peripheral device power line 130 are connected to start outputting power to the peripheral device 43. Further, the connection between the communication line 150b and the communication line 110 is cut off, and the mobile terminal 20 and the controller 40 are made unable to communicate.

On the other hand, if the external power source 21 is being used as the power source for the controller 40 during the data exchange operation (i.e., if S14 in FIG. 3D is judged to be "Yes"), the power line/communication switching unit 35 disconnects the power line 150a from the power line 120 in S18, while restoring the connection between the power line 140 and the power lines 120 and 130, thereby switching the power supply source for the controller 40 from the external power source 21 to the battery 10. Furthermore, the connection between the communication line 150b and the communication line 110 is disconnected, rendering the mobile terminal 20 and the controller 40 unable to communicate.

After S18 is completed, S19 is executed. In S19, the power supply switching determination unit 34 sends a command to the mobile terminal 20 to display a screen informing the operator that the mobile terminal 20 can be removed from the protection mechanism 30. After checking the screen on the mobile terminal 20, the operator can remove the mobile terminal 20 from the protection mechanism 30.

[effect]
According to the second embodiment described above in detail, it is possible to obtain the same effects as those of the first embodiment described above.

Further, the protection mechanism 30 of the present embodiment prevents the power supply source of the controller 40 when the mobile terminal 20 is connected and the battery 10 and the controller 40 are connected by the battery disconnection device 50 (when the battery disconnection device is not activated). Switching is made to either the battery 10 or the external power source 21 in response to external input, and the controller 40 and the mobile terminal 20 are communicably connected. In other words, even when the battery cutoff device is not activated, it is possible to select whether to use the power from the battery 10 or the external power supply 21 as the power source for the controller 40, and furthermore, the controller 40 can be used to save power during data reading/writing operations. Since it is possible to start up in the mode, consumption of the battery 10 can be suppressed.

In addition, in this embodiment, when the power supply source of the controller 40 is either the battery 10 or the external power source 21, the protection mechanism 30 supplies power from the power supply source of the controller 40 to the processor (CPU) 42 in the controller 40 and does not supply power to the peripheral devices 43 in the controller 40, so that the controller 40 starts up without a startup operation. With this configuration, the controller 40 starts up when power is supplied to the processor 42, eliminating the need to separately start up the controller and improving work efficiency.

Furthermore, the protection mechanism 30 of the present embodiment switches the power supply source of the controller 40 (switching between the battery 10 and the external power source 21), switches the power supply destination of the controller 40 (switches between the CPU 42 and the peripheral device 43), Another feature is that connection/disconnection (ON/OFF) between the communication line 150b connecting the controller 40 and the mobile terminal 20 and the communication line 110 is switched.

Third Embodiment
In the second embodiment, an example has been shown in which power is supplied from the protection mechanism 30 to each controller 40 using two power lines, a CPU power line 120 and a peripheral device power line 130. This embodiment has a feature in which power is supplied from the protection mechanism 30 to each controller 40 via a single power line 170, and a startup mode is instructed to the controller 40 via a signal line 180. Since the basic configuration is the same as in the second embodiment, the following description will focus on the differences.

[Description of FIG. 4A]
Fig. 4A is a configuration diagram of a construction machine system according to a third embodiment. The protection mechanism 30 and each controller 40 are connected by a power line 170, a signal line 180, and a communication line 110. The other configuration is similar to that of Fig. 3A described in the second embodiment.

[Description of FIG. 4B]
FIG. 4B is a block diagram of the controller 40 according to this embodiment. A power line 170 and a signal line 180 are connected to the startup mode detection section 45 . From the power line 170, power is supplied to the controller 40 from either the battery 10 or the external power source 21. Additionally, the activation mode detection unit 45 receives a signal notifying the activation mode of the controller 40 from the protection mechanism 30 through the signal line 180. The other configurations are the same as those in FIG. 3B described in the second embodiment.

As in the second embodiment, the controller 40 of this embodiment has two startup modes: a normal startup mode and a power saving mode. The startup mode in this embodiment is switched by the power line/communication switching unit 35 in the protection mechanism 30, which outputs a signal indicating the currently set mode to the startup mode detection unit 45 in each controller 40 via the signal line 180. The startup mode detection unit 45 that receives this output supplies power from the power source to both the CPU 42 and the peripheral device 43 in the normal startup mode, and supplies power from the power source only to the CPU 42 in the power saving mode. In each startup mode, the other points, including whether the power line 170 is connected to the power line 140 or the power line 150a, and when the communication line 150b is connected to the communication line 110, are the same as those in the second embodiment.

Specifically, first, in the normal startup mode, power is being supplied from the battery 10 to the CPU 42 and peripheral devices 43 via the power line 170, and a controller startup operation (such as a key operation) is input. Then, the controller 40 is activated and all functions of the controller 40 are enabled. However, even if power is being supplied via the power line 170, the controller 40 will not start unless a controller start operation is input. In the normal startup mode, the protection mechanism 30 (power line/communication switching unit 35) connects the power line 140 and the power line 170, disconnects the power line 150a and the power line 170, and sets the controller 40 to the startup mode. sends data indicating that it is in the normal startup mode to the controller 40 (startup mode detection section 45) via the signal line 180. The startup mode detection unit 45 that has received the data supplies power supplied via the power line 170 to both the CPU 42 and the peripheral device 43.

Next, in the power saving mode, when power is being supplied to the controller 40 from either the battery 10 or the external power source 21 via the power line 170, and when the data indicating the startup mode of the controller 40 input from the signal line 180 is in the "power saving mode" state, the startup mode detection unit 45 supplies power supplied via the power line 170 only to the CPU 42, and interrupts the supply to the peripheral device 43. In this case, the controller 40 is started up without any startup operation. However, if the data input from the signal line 180 changes to one indicating the "normal startup mode", the controller 40 is shut down.

[Description of FIG. 4C]
4C is a block diagram showing the configuration of the protection mechanism 30. A power line 170, a signal line 180, and a communication line 110 are connected to the power supply switching mechanism 33, and these three lines connect to the controller 40. Data indicating whether the startup mode of the controller 40 is the "normal startup mode" or the "power saving mode" flows on the signal line 180, and the currently set startup mode of the controller 40 can be notified to the controller 40 (start-up mode detection unit 45).

The other configurations are the same as those in FIG. 3C described in the second embodiment.

[Description of FIG. 4D]
Processing executed by the power switching mechanism 33 in the protection mechanism 30 will be described using FIG. 4D.

The basic process is the same as that described in the second embodiment in FIG. 3D, but the process differs in S26A in FIG. 4D, which corresponds to S15A in FIG. 3D.

If it is determined "Yes" in S12, that is, if it is selected to use the battery 10 as a power source, the power line/communication switching unit 35 changes the startup mode of the controller 40 from the normal startup mode to the power saving mode in S26A. , and outputs a signal (selection mode signal) indicating that the "power saving mode" is selected to the startup mode detection unit 45 of the controller 40 via the signal line 180. At this time, the power line/communication switching unit 35 keeps the power line 140 and the power line 170 connected, and connects the communication line 150b and the communication line 110, so that the controller 40 and the mobile terminal 20 can communicate. switch to the state. The startup mode detection unit 45 that has received the selection mode signal supplies power from the power line 170 only to the CPU 42 and interrupts the supply to the peripheral devices 43. As a result, the controller 40 is activated and becomes ready to communicate with the mobile terminal 20.

Next, the processing differs in S26B in FIG. 4D, which corresponds to S15B in FIG. 3D in the second embodiment.

If the result of the determination in S14 is "Yes", that is, if the external power source 21 is used as the power source and has sufficient power to start the controller 40, the power line/communication switching unit 35 disconnects the power line 140 from the power line 170 and connects the power line 150a to the power line 170 to switch the power supply source from the battery 10 to the external power source 21, and connects the communication line 150b to the communication line 110 to switch the state in which the controller 40 and the portable terminal 20 can communicate with each other. Furthermore, the power line/communication switching unit 35 switches the startup mode of the controller 40 from the normal startup mode to the power saving mode, and outputs a signal (selected mode signal) indicating that the "power saving mode" has been selected via the signal line 180 to the startup mode detection unit 45 of the controller 40. The startup mode detection unit 45, which has received the selected mode signal, supplies power from the power line 170 only to the CPU 42 and interrupts the supply to the peripheral device 43. This starts up the controller 40 and makes it capable of communicating with the portable terminal 20. In other words, the power line/communication switching unit 35 of this embodiment switches the power supply source (the battery 10 and the external power source 21), switches the selection mode signal output via the signal line 180, and switches whether communication between the portable terminal 20 and the controller 40 is possible.

[Description of FIG. 4E]
Next, the process executed by the power switching mechanism 33 at the end of the data exchange work will be described using the flowchart of FIG. 4E. The power supply switching mechanism 33 executes S30 upon receiving from the mobile terminal 20 a data exchange work completion notification that is output when the data exchange work between the controller 40 and the mobile terminal 20 is completed.

If the battery 10 is being used as a power source for the controller 40 during the data exchange operation (that is, if the determination is "Yes" in S12 of FIG. 4D), the power line/communication switching unit 35 switches the startup mode in S30. The power saving mode is switched to the normal startup mode, and a selected mode signal after switching is output to the controller 40 via the signal line 180. Further, the power line/communication switching unit 35 resumes power supply from the battery 10 to the peripheral device 43. Further, the connection between the communication line 150b and the communication line 110 is cut off, and the mobile terminal 20 and the controller 40 are made unable to communicate.

On the other hand, if the external power supply 21 is used as a power source for the controller 40 during the data exchange operation (that is, if the determination is "Yes" in S14 of FIG. 4D), the power line/communication switching unit 35 is activated in S30. , while disconnecting the power line 150a and the power line 170, restoring the connection between the power line 140 and the power line 170, and switching the power supply source of the controller 40 from the external power supply 21 to the battery 10. Further, the power line/communication switching unit 35 switches the startup mode from the power saving mode to the normal startup mode, and outputs a selected mode signal after switching to the controller 40 via the signal line 180. Further, the connection between the communication line 150b and the communication line 110 is cut off, and the mobile terminal 20 and the controller 40 are made unable to communicate.

After S30 ends, S31 is executed. In S31, the power switch determining unit 34 transmits a command to the mobile terminal 20 to display a screen informing that the mobile terminal 20 can be removed from the protection mechanism 30. After checking the screen on the mobile terminal 20, the worker can remove the mobile terminal 20 from the protection mechanism 30.

[effect]
According to the third embodiment detailed above, the same effects as the second embodiment described above can be obtained. Further, in the present embodiment, the protection mechanism 30 switches the power supply source of the controller 40 and switches the connection/cutoff (ON/OFF) of the two communication lines 150b and 110 connecting the controller 40 and the mobile terminal 20. and switches the startup mode of the controller 40 (normal startup mode or power saving mode), outputs a signal (selection mode signal) indicating the startup mode after switching the startup mode to the controller 40, and switches the controller 40 ( The startup mode detection unit 41) switches the power supply destination in the controller 40 (only the CPU 42, or both the CPU 42 and the peripheral device 43) in response to the signal (selection mode signal). With this configuration, the number of power lines between the protection mechanism 30 and the controller 40 can be reduced to one (specifically, the power line 170).

Fourth Embodiment
In the first, second and third embodiments, examples have been shown in which the mobile terminal 20 has a built-in external power source 21 and performs both the functions of power supply and communication. The fourth embodiment is characterized in that the external power source 21 is a device (e.g., a mobile battery) independent of the mobile terminal 20, and the mobile terminal 20 only communicates with the controller 40 via the communication line 150b. Other basic configurations are similar to those of the first, second and third embodiments, so the differences will be mainly described here.

[Description of FIG. 5A]
FIG. 5A is a configuration diagram of a construction machine system according to a fourth embodiment. The mobile terminal 20 is connected to the protection mechanism 30 through a communication line 150b and only performs communication. External power source 21 is connected to protection mechanism 30 via power line 150a. As the external power source 21, for example, a portable mobile battery can be used. Note that the other points are the same as the system of FIG. 3A of the second embodiment, so the explanation will be omitted. Although the description will be based on the second embodiment here, there is no problem even if the first and third embodiments are used as the base.

[Description of FIG. 5B]
FIG. 5B is a block diagram showing the configuration of the protection mechanism 30 according to this embodiment. The difference from the protection mechanism 30 of the second embodiment is that a power line 150a connected to the external power source 21 is connected to the external power source/communication input section 32, and a power line 150a connected to the mobile terminal 20 is connected to the external power source/communication input section 32. There is a point where communication line 150b is connected.

The other configurations are the same as in FIG. 3C described in the second embodiment, and the processing (behavior) executed by the protection mechanism 30 and the controller 40 is also the same as in the second embodiment. Alternatively, it may be similar to FIG. 2C described in the first embodiment, and the processing in that case is also the same as that in the first embodiment. Alternatively, it may be similar to FIG. 4C described in the third embodiment, and the processing in that case is also the same as that in the third embodiment.

[effect]
According to the fourth embodiment described above in detail, it is possible to obtain the same effects as those of the first to third embodiments described above. In particular, when the battery built into the portable terminal 20 cannot be used as an external power source, the advantage of this embodiment is that, if there is an external power source 21 independent of the portable terminal 20 as in this embodiment, reading and writing operations to the controller 40 can be performed regardless of the remaining battery power of the portable terminal 20.

(Fifth embodiment)
In each of the embodiments described above, an example has been shown in which the mobile terminal 20 is connected to the protection mechanism 30 by wire to provide power supply and communication functions. The present embodiment is characterized in that power supply and communication between the mobile terminal 20 and the protection mechanism 30 are performed wirelessly. The basic configuration of this embodiment described below is the same as that of the second embodiment, so the explanation will focus on the differences.

[Description of FIG. 6A]
6A is a configuration diagram of a construction machine system according to a fifth embodiment. The mobile terminal 20 has both power supply and communication functions. A mobile terminal side wireless device 80 is attached to the mobile terminal 20, and power supply and communication are performed wirelessly using the mobile terminal side wireless device 80. A protection mechanism side wireless device 70 that is paired with the mobile terminal side wireless device 80 is attached to the protection mechanism 30, and this device 70 allows power supply and communication with the mobile terminal 20 to be performed wirelessly.

Note that the other configurations are the same as those in FIG. 2A described in the second embodiment. In addition, although the second embodiment will be described here, there is no problem in using the first and third embodiments as a base.

[Explanation of FIG. 6B]
6B is a block diagram showing the configuration of the protection mechanism 30 according to this embodiment. The protection mechanism 30 includes a protection mechanism side wireless device 70. The protection mechanism side wireless device 70 is a device for wirelessly receiving power and communication data from the mobile terminal 20. A power line 150a and a communication line 150b are connected to the protection mechanism side wireless device 70. The power received by the protection mechanism side wireless device 70 is supplied to the power source switching mechanism 33 through the power line 150a. The communication data received by the protection mechanism side wireless device 70 is sent to the power source switching mechanism 33 through the communication line 150b. In addition, the communication data transmitted from the power source switching mechanism 33 to the protection mechanism side wireless device 70 through the communication line 150b is wirelessly sent to the mobile terminal side wireless device 80.

The other configurations are the same as in FIG. 2C described in the second embodiment, and the processing (behavior) executed by the protection mechanism 30 in that case is also the same as in the second embodiment. Note that the configuration of the protection mechanism 30 may be the same as that shown in FIG. 3C described in the third embodiment, and the processing in that case is also the same as in the third embodiment. Further, it may be similar to FIG. 4C described in the fourth embodiment, and the processing in that case is also the same as that in the fourth embodiment.

[Description of FIG. 6C]
The process executed by the protection mechanism 30 is basically the same as that in the flowchart of Fig. 2D in the second embodiment, but the process when the mobile terminal is connected, i.e., the process at the start of the flowchart, is different. The difference will be explained with reference to Fig. 6C.

First, when wirelessly connecting the mobile terminal 20 to the protection mechanism 30, the worker puts the mobile terminal 20 into a state where wireless power supply and communication are possible. First, in S40, the mobile terminal 20 transmits a command (work start command) to the protection mechanism side wireless device 70 of the protection mechanism 30 via the mobile terminal side wireless device 80 to notify the start of work. After transmitting the work start command, S41 is executed. Wireless power supply is not being performed at this point.

In S41, it is checked whether there is a response to the work start command from the protection mechanism side wireless device 70 (protection mechanism 30) side. This can be confirmed, for example, by checking whether the mobile terminal side wireless device 80 has received a response signal transmitted from the protection mechanism 30 via the protection mechanism side wireless device 70 when receiving the work start command.

If the determination in S41 is "Yes", that is, if there is a response from the protection mechanism 30, it can be assumed that power is being supplied from the battery 10 to the protection mechanism 30. Then, the process proceeds to S42, where wireless power supply from the mobile terminal 20 to the protection mechanism 30 is started, and the process proceeds to S11 in FIG. 3D, where the process in FIG. 3D is executed thereafter.

On the other hand, if the determination in S41 is "No", that is, if there is no response from the protection mechanism 30, it can be assumed that no power is being supplied from the battery 10. In that case, the process proceeds to S43, where wireless power supply is started as in S42, and the process proceeds to S13 in FIG. 3, and the process in FIG. 3D is executed thereafter.

The processes following S42 and S43 can be different depending on the embodiment on which it is based. For example, if the hardware configuration of the first embodiment is used as a base, S4A in FIG. 2D can be executed after S42, and S2 in FIG. 2D can be executed after S43. Also, if the third embodiment is used as a base, S11 in FIG. 4D can be executed after S42, and S13 in FIG. 4D can be executed after S43.

[effect]
According to the fifth embodiment described above in detail, it is possible to obtain the same effects as those of the first to third embodiments described above. In particular, according to this embodiment, the mobile terminal 20 and the protection mechanism 30 can be wirelessly connected, which has the advantage that a physical cable for connecting the two is not required.

Note that in this embodiment, both the communication and power supply between the mobile terminal 20 and the protection mechanism 30 are performed wirelessly, but either the communication or the power supply may be performed wirelessly.

[others]
In the above description, a hydraulic excavator was used as an example of a construction machine included in the system, but other construction machines such as a wheel loader and a dump truck may also be included in the system.

Note that the present invention is not limited to the above-described embodiments, and includes various modifications within the scope of the invention. For example, the present invention is not limited to having all the configurations described in each of the above embodiments, but also includes configurations in which some of the configurations are deleted. Further, a part of the configuration according to one embodiment can be added to or replaced with the configuration according to another embodiment.

In addition, each configuration related to the protection mechanism 30 and controller 40, and the functions and execution processing of each of the configurations, may be partially or completely implemented using hardware (for example, the logic for executing each function may be designed using an integrated circuit, etc.). ) may be realized. Further, the configuration related to the protection mechanism 30 and the controller 40 described above is a program (software) that is read and executed by an arithmetic processing unit (for example, a CPU) to realize each function related to the configuration of the protection mechanism 30 and the controller 40. You can also use it as Information related to the program can be stored in, for example, a semiconductor memory (flash memory, SSD, etc.), a magnetic storage device (hard disk drive, etc.), a recording medium (magnetic disk, optical disk, etc.), and the like.

In addition, in the description of each embodiment above, the control lines and information lines are those that are understood to be necessary for the description of the embodiment, but not all control lines and information lines related to the product are necessarily included. It does not necessarily indicate that In reality, almost all configurations can be considered to be interconnected.

1...Construction machine, 2...Attachment (bucket), 3...Upper rotating body, 4...Lower traveling body, 5...Work device, 10...Battery, 10a...Positive terminal, 10b...Negative terminal, 20...Mobile terminal, 21...Terminal side battery (external power source), 30...Protection mechanism, 31...Battery power source diagnostic section, 31a...Battery power source input section, 32...External power source/communication input section, 33...Power source switching mechanism, 34...Power source switching determination section, 35...Power source line/communication switching section, 40...Controller (ECU), 41...Start-up mode detection section, 42...Processor (CPU), 43...Peripheral device, 44...Communication Interface (I/F), 45... startup mode detection unit, 50... battery cutoff device, 70... protection mechanism side wireless device, 80... mobile terminal side wireless device, 90a... diode, 90b... diode, 102... power line, 110... communication line, 120... CPU power line, 130... peripheral device power line, 140... power line, 140a... power line (battery monitor line), 150... power communication line (mobile terminal connection line), 150a... power line, 150b... communication line, 160... power line, 170... power line, 180... signal line

Claims (9)

A controller connectable to a mobile terminal via a communication line;
a battery capable of supplying power to the controller via a power line;
In a construction machine system including a battery cutoff device that switches between connection and cutoff between the battery and the controller,
a protection mechanism that can be connected to the battery and an external power source and can switch a power supply source of the controller to either the battery or the external power source;
The construction machinery system is characterized in that, when the mobile terminal and the external power source are connected and the battery and the controller are cut off by the battery cut-off device, the protection mechanism switches the power supply source of the controller to the external power source and connects the controller and the mobile terminal so that they can communicate with each other. 2. The construction machine system according to claim 1,
The construction machinery system is characterized in that, when the mobile terminal is connected and the battery and the controller are connected by the battery cut-off device, the protection mechanism switches the power supply source of the controller to either the battery or the external power source in response to external input, and connects the controller and the mobile terminal so that they can communicate with each other. 2. The construction machine system according to claim 1,
A construction machinery system characterized in that, when the power supply source of the controller is either the battery or the external power source, the protection mechanism supplies power from the power supply source of the controller to a processor within the controller but does not supply power to peripheral devices within the controller. The construction machine system according to claim 1,
A construction machine system characterized in that the protection mechanism switches the power supply source of the controller and turns on/off the communication line connecting the controller and the mobile terminal. The construction machine system according to claim 1,
The protection mechanism is characterized in that the protection mechanism switches the power supply source of the controller, switches the power supply destination in the controller, and switches ON/OFF the communication line connecting the controller and the mobile terminal. construction machinery system. The construction machine system according to claim 1,
The protection mechanism switches the power supply source of the controller, turns on/off the communication line connecting the controller and the mobile terminal, and switches the startup mode of the controller. Outputting a signal indicating the switching start mode to the controller;
A construction machine system, wherein the controller switches a power supply destination in the controller according to the signal. The construction machine system according to claim 1,
A construction machine system, wherein the external power source is a battery built into the mobile terminal. 2. The construction machine system according to claim 1,
A construction machinery system characterized in that the external power source is a mobile battery. 2. The construction machine system according to claim 1,
A construction machine system, characterized in that at least one of communication and power supply between the mobile terminal and the protection mechanism is performed wirelessly.

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