CN210270097U

CN210270097U - Diagnostic device suitable for tool system component

Info

Publication number: CN210270097U
Application number: CN201920192152.4U
Authority: CN
Inventors: 胡钊; 鲜超; 耿正; 王东玥; 潘勇进
Original assignee: Chevron HK Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2017-12-21
Filing date: 2018-04-09
Publication date: 2020-04-07
Anticipated expiration: 2028-04-09
Also published as: CN208580190U

Abstract

The utility model discloses a diagnostic device suitable for tool system part for the diagnosis of tool system part, wherein, this diagnostic device includes: at least one interface for connecting tool system components; at least one communication module for communicating at least one usage characteristic data associated with the tool system component via the at least one interface; a processor for controlling the transmission of usage characteristic data associated with the tool system component. The diagnosis device suitable for the tool system components realizes the diagnosis function of the tool system components such as the battery pack, the tool and the like, can effectively reduce the factory return maintenance rate of the tool system components, shortens the maintenance time, reduces the maintenance cost and improves the user experience.

Description

Diagnostic device suitable for tool system component

Technical Field

The utility model relates to an electric tool field especially relates to a diagnostic device suitable for instrument system component.

Background

In a dc power tool system, the main components involved include: the tool itself, the battery pack and the charger, any one of which fails, can affect the user's use. Due to the limitation of the size, the use condition, the manufacturing cost and other factors of the above parts, especially the tool and the battery pack, rarely include a display device capable of displaying the cause of the fault, once the fault occurs, it is difficult for a user to quickly perform on-site troubleshooting, and more choices are made to seek help from a seller or a maintenance service site, and due to the professional level limitation of the seller or the maintenance service site staff, they are likely to apply maintenance pressure to equipment manufacturers, such as: and returning to the factory for maintenance. If the repair is returned to the factory due to some tiny reasons or partial component failure, the waiting time of the user is increased and the repair cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above object, the utility model adopts the following technical scheme:

a diagnostic device adapted for use with a tool system component for diagnosis of the tool system component, the diagnostic device comprising: at least one interface for connecting the tool system components; at least one communication module for communicating at least one usage characteristic data associated with a tool system component with the tool system component via the at least one interface; a processor for controlling the transmission of the usage characteristic data associated with the tool system component.

Further, the tool system component is at least one of a battery pack or a power tool.

Further, the tool system component includes a battery pack including at least one communication terminal, the interface of the diagnostic device includes a battery pack interface, the battery pack interface including:

the first positive power supply terminal is used for connecting the positive power supply terminal of the battery pack;

a first negative power supply terminal for connecting a negative power supply terminal of the battery pack;

at least one communication terminal for connecting the at least one communication terminal of the battery pack with the at least one communication module of the device for transmitting the battery pack identity information and/or at least one usage characteristic data related to the battery pack.

Further, the diagnostic apparatus further comprises a voltage measurement module disposed on the conductive loop between the first positive power supply terminal and the first negative power supply terminal for detecting a voltage of the battery pack under control of the processor.

Further, a recognition resistor is arranged between at least one communication terminal of the battery pack and a negative power supply terminal of the battery pack; the diagnostic device further comprises an identification resistance measurement module, wherein the identification resistance measurement module is connected with the at least one communication terminal of the battery pack interface and used for acquiring a voltage value at two ends of the identification resistance under the control of the processor.

Further, the tool system component includes a power tool including at least one communication terminal, the interface of the diagnostic device includes a tool interface, the tool interface including:

a second positive power supply terminal for connecting a positive power supply terminal of the power tool with the first positive power supply terminal;

a second negative power supply terminal for connecting a negative power supply terminal of the power tool with the first negative power supply terminal;

at least one communication terminal for connecting the at least one communication terminal of the power tool with the at least one communication module of the diagnostic device for transmitting identity information of the power tool and/or at least one usage characteristic data related to the power tool.

Further, the tool system component includes a power tool, the interface of the diagnostic device includes a tool interface, the tool interface including:

at least one communication terminal for connecting the at least one communication terminal of the power tool with the at least one communication module of the diagnostic device to send a wake-up command to the power tool and/or to detect an activation status of the power tool.

Further, the diagnostic device further comprises an external equipment interface, and the device sends out at least one type of usage characteristic data related to the tool system component through the external equipment interface.

The utility model discloses an useful part lies in: the diagnosis device suitable for the tool system components is used for diagnosing the tool system components such as the battery pack and the tool, the factory return maintenance rate of the tool system components can be effectively reduced, the maintenance time is shortened, the maintenance cost is reduced, and the user experience is improved.

Drawings

FIG. 1 is a schematic diagram of a diagnostic device suitable for use with a tool system component according to the present invention;

FIG. 2 is a schematic diagram of a circuit module of a diagnostic device suitable for use with a tool system component according to the present invention;

FIG. 3 is a schematic view of an application scenario of a diagnostic device suitable for use with a tool system component according to the present invention;

FIG. 4 is a schematic block diagram of a battery pack;

FIG. 5 is a block diagram of a power tool;

FIG. 6 is a flow chart of the data processing of FIG. 3 using the diagnostic device of the present invention adapted for use with a tool system component in conjunction with a computer;

FIG. 7 is a flow chart for diagnosing a battery pack using the diagnostic device of FIG. 1 adapted for use with a tool system component;

FIG. 8 is another flow chart for diagnosing a battery pack using the diagnostic device of FIG. 1 adapted for use with a tool system component;

FIG. 9 is a flow chart for diagnosing a tool using the diagnostic device of FIG. 1 adapted for use with a tool system component;

FIG. 10 is another flow chart for diagnosing a tool using the diagnostic device of FIG. 1 adapted for use with a tool system component;

FIG. 11 is a flow chart for upgrading a battery pack using the diagnostic device of FIG. 1 adapted for use with a tool system component;

fig. 12 is a flow chart for upgrading a tool using the diagnostic device of fig. 1 adapted for use with a tool system component.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As an embodiment of the diagnostic device applicable to the tool system component of the present invention, the diagnostic device 100 in fig. 1 includes: the casing 190, the casing 190 is provided with a battery pack interface 110, a tool interface 120, an external device interface 130, and a power interface 140 for connecting an external power source to supply power to the device.

As shown in fig. 3, the battery pack interface 110 is used for connecting a battery pack 200, the battery pack interface 110 includes at least one first adapter 111 and a first terminal 112, the first adapter 111 is matched with a third adapter disposed on a housing of the battery pack 200, the terminal is disposed in the housing 190 and at least partially exposed outside the housing 190, when the first adapter and the third adapter are mechanically connected, the first terminal 112 is electrically connected to a corresponding terminal disposed in the third adapter, so as to further implement data processing capabilities such as data detection and transmission required for diagnosing the battery pack 200. How the device 100 adapted to the tool system component is used to perform data processing on the battery pack 200 will be described in detail below.

The tool interface 120 includes a second adapter 121 and a second connection terminal 122, the second adapter 121 is matched with a fourth adapter disposed on the housing of the tool 300, and when the second adapter 121 is mechanically connected to the fourth adapter, the second connection terminal 122 is electrically connected to a corresponding connection terminal disposed in the fourth adapter, so as to further implement data processing capabilities such as data detection and transmission required when diagnosing the tool 300. How the apparatus 100 adapted to the tool system component is used to process data of the tool 300 will be described in detail below.

The external device interface 130 may be a USB interface, and is used to connect a display device such as an LCD screen to display data related to the battery pack 200 and the tool 300; or a device such as a computer, a tablet computer, or a mobile phone may be connected, and the device may receive data from the device 100 suitable for the tool system component for display, and has data processing capabilities such as data calculation and data transmission, or may transmit data and software data to the device 100 suitable for the tool system component to upgrade the device 100 and upgrade the tool system component connected to the device 100.

As one tool system component, as shown in fig. 4, the battery pack 200 includes a case in which a battery cell pack 205 is accommodated, the battery cell pack 205 being for storing energy, which can be repeatedly charged and discharged. The battery pack 200 may further include a control unit 206, a detection unit such as: the battery pack temperature measuring device comprises an electrical parameter detecting unit 207, a temperature detecting unit 208 and a storage unit 209, wherein the control unit 206 mainly realizes charging and discharging control of the battery pack 200 and control of the electrical parameter detecting unit 207, the temperature detecting unit 208 and the storage unit 209, the electrical parameter detecting unit 207 is mainly used for detecting some electrical parameters and physical parameters of the battery pack 200, such as current, voltage or cell voltage of the battery pack 200, and the temperature detecting unit 208 is used for detecting the temperature of the battery pack and comprises a temperature measuring element which can adopt a negative temperature coefficient thermistor (NTC) or a Positive Temperature Coefficient (PTC); the storage unit 209 is mainly used for storing application software of the battery pack, and usage characteristic data related to the battery pack, such as electrical parameters of the battery pack, temperature of the battery pack, and the number of charging and discharging times.

The case of the battery pack 200 is formed with a third fitting portion through which the battery pack 200 can be connected to the power tool 300. The battery pack 200 includes a plurality of power terminals, such as a positive power terminal 201 and a negative power terminal 204, which are used at least to electrically connect the battery pack 205 with an external circuit, such as a circuit for driving a motor in the power tool 300 or a charging circuit in a charger. The battery pack 200 further includes other types of connection terminals, such as a battery pack first communication terminal 202, connected to the battery pack first communication unit 210 for establishing communication with a charger, a tool, etc., and transmitting usage characteristic data related to the battery pack; the battery pack second communication terminal 203 is connected with the identification resistor 211, the terminal can be used as an identification terminal for identifying the insertion of the battery pack by components such as a charger and the like, the identification resistor 211 can be a common resistor, or a negative temperature coefficient thermistor NTC or a positive temperature coefficient thermistor PTC, and preferably, the electrical parameter of the identification resistor 211 is the same as that of a temperature measuring element in the battery pack; in some cases, the communication terminals may also be multiplexed, for example, the second communication terminal 203 may also be connected to the second communication unit 212 of the battery pack 200 for transmitting the usage characteristic data related to the battery pack. Both the two communication terminals can be used for transmitting data, the use frequency of the first communication terminal 202 and the second communication terminal 203 is effectively balanced, and the service life of the terminals is prolonged.

Specifically, the circuit module or the integrated circuit formed by the control unit 206, the storage unit 209, and the detection units such as the electrical parameter detection unit 207 and the temperature detection unit 208 enables the battery pack 200 to detect and record its own usage characteristic data in real time, perform data statistics or failure analysis using the data detected in real time and/or the recorded historical data, and transmit the real-time data, the historical data, the statistical data, and the analysis data to the outside through the

communication terminals

202 or 203 to the tools, the rest of the tool system components of the charger, and the external devices such as the computer.

As another tool system component, as shown in fig. 5, the tool 300 includes a fourth adapter and a connection terminal, and the tool 300 can be detachably connected to the battery pack 200 through the fourth adapter to supply power thereto. The connection terminals comprise a positive power supply terminal 301 and a negative power supply terminal 304, a first tool communication terminal 302 and a second tool communication terminal 303, wherein the power supply terminals are used for connecting an external power supply circuit, and the

communication terminals

302 or 303 are used for establishing a communication link between the tool 300 and a battery pack and the like to realize unidirectional and/or bidirectional data transmission. The tool 300 includes a power-consuming device that may include a motor 305. The tool 300 may be a hand-held power tool, a garden power tool, or the like, and the tool 300 includes, but is not limited to, an electric drill, an electric wrench, an electric screwdriver, an electric hammer, an electric impact drill, an electric planer, a lawn mower, or the like.

The tool 300 further comprises a storage unit 310, a control unit 306 and a detection unit 309, wherein the detection unit 309 can detect the usage characteristic information of the tool, for example: data such as the rotating speed of the motor, the current flowing through the motor, the communication state and the like; the storage unit 310 may store data related to the application software of the tool and the use characteristics of the tool, including data of use frequency, failure times, voltage, current, temperature, rotation speed, torque, and the like; the control unit 306 is electrically connected with the tool first communication terminal 302 through the tool first communication unit 307, and is electrically connected with the tool second communication terminal 303 through the tool second communication unit 308, so that data transmission with components such as a battery pack is realized; the control unit 306 performs coordinated control on the detection unit 309 and the storage unit 310, so that the tool 300 can perform real-time detection and recording on its own usage characteristic data, perform data statistics or fault analysis using the real-time detected data and/or recorded historical data, and transmit the real-time data, historical data, statistical data, and analysis data to the outside to the remaining tool system components such as a battery pack and external devices such as a computer.

The first adapter 111 of the diagnostic device 100 and the fourth adapter of the tool 300 may have the same structure, and the second adapter 121 of the diagnostic device 100 and the third adapter of the battery pack 200 may have the same structure, so that the battery pack 200 can be directly connected to the diagnostic device 100 adapted to the tool system component through the battery pack interface 110 after being detached from the tool 300; the tool 300 may be connected directly to the diagnostic device 100 adapted for tool system components through the tool interface 120.

The operation principle of the diagnostic apparatus 100 suitable for the tool system component will be described below by taking a computer as an external device. As shown in fig. 2 and 3, the diagnostic apparatus 100 for tool system components may process data of the battery pack 200 or data of the tool 300, and includes: a battery pack data detection and transmission module, a tool data detection and transmission module, a processor 150, a temperature detection module 180, an external device data communication module 131 and a system power supply module 141, wherein the processor 150 is electrically connected with the other five modules. The system power supply module 141 is connected with an external power supply through the power interface 140 to supply power to the processor 150; the external device data communication module 131 is connected with the computer 400 through the external device interface 130, and establishes a communication link between the computer 400 and the processor 150 or the diagnostic device 100 suitable for the tool system component; the temperature detection module 180 is configured to detect the temperature in the device 100, and may include a reference temperature measurement element, where the reference temperature measurement element may be a negative temperature coefficient thermistor NTC or a positive temperature coefficient thermistor PTC, and preferably, the reference temperature measurement element has the same electrical parameter as the temperature measurement element in the battery pack; the battery pack data detection and transmission module is connected with the battery pack 200 through the battery pack interface 110 to realize the data processing function of the battery pack 200 by the processor 150 or the diagnostic device 100 suitable for the tool system component; the tool data detection and transmission module is connected with the tool 300 through the tool interface 120 to realize the data processing function of the processor 150 or the diagnosis device 100 suitable for the tool system component on the tool 300; the diagnostic apparatus 100 may further include an LED display module 181 connected to the processor 150 for displaying the operation status of the diagnostic apparatus 100, for example, an LED lamp may be used to flash to indicate data transmission, to turn on power normally, to turn on power abnormally, and so on.

The first connection terminal 112 of the battery pack interface 110 includes a first positive power terminal 113, a first negative power terminal 116, a first communication terminal 114, and a second communication terminal 115, and the battery pack data detection and transmission module includes a voltage measurement module 160, a first communication module 161, a second communication module 162, and an identification resistance measurement module 163, which are electrically connected to the processor 150, respectively, wherein the voltage detection module 160 is electrically connected to the first positive power terminal 113, the first communication module 161 is electrically connected to the first communication terminal 114, and the second communication module 162 and the identification resistance measurement module 163 multiplex the second communication terminal 115; the second connection terminal 122 of the tool interface 120 includes a second positive power terminal 123, a second negative power terminal 126, a third communication terminal 124, and a fourth communication terminal 125, the tool data detection and transmission module includes a third communication module 164, a tool connection state detection module 165, and a fourth communication module 166, the third communication module 164 and the tool connection state detection module 165 multiplex the third communication terminal 124, and the fourth communication module 166 is electrically connected to the fourth communication terminal 125; the first positive power supply terminal 113 is electrically connected to the second positive power supply terminal 123, and the first negative power supply terminal 116 is electrically connected to the second negative power supply terminal 126.

Specifically, the diagnostic apparatus 100 for tool system components further includes a switching element device group to realize the switching of the battery pack data processing function and the tool data processing function, and the switching of the electrical connection between the multiplexing module and the terminal. Specifically, a first switch 170 is disposed between the first negative power supply terminal 116 and the second negative power supply terminal 126, when the first switch 170 is turned on, a conductive loop exists between the battery pack 200 and the tool 300, and the battery pack 200 supplies power to the tool 300; a second switch 171 is disposed between the voltage detection module 160 and the first positive power supply terminal 113; a third switch 172 is provided between the first communication module 161 and the first communication terminal 114; a fourth switch 173 is arranged between the second communication module 162 and the identification resistance measurement module 163 and the second communication terminal 115, and the fourth switch 173 makes the identification resistance measurement module 163 not be conducted with the second communication terminal 115 when the second communication module 162 is conducted with the second communication terminal 115, and vice versa, so as to realize multiplexing of the second communication terminal 115. A fifth switch 178 is disposed between the third communication module 164 and the tool connection state detection module 165 and the third communication terminal 124, and when the third communication module 164 is conducted with the third communication terminal 124, the tool connection state detection module 165 is not conducted with the third communication terminal 124, or vice versa, so as to implement multiplexing of the third communication terminal 124. Each switch in the switch element device group can adopt a relay or a mos tube and the like, and comprises an open state and a closed state, wherein the open state is that two ends of the switch are conducted, the closed state is that two ends of the switch are not conducted, and the initial state is generally set to be the closed state.

The diagnostic device 100 can perform bidirectional communication with tool system components such as the battery pack 200 and the tool 300, and can perform fault diagnosis or software upgrade on the battery pack 200 and the tool 300. Of course, the diagnostic apparatus 100 may also perform software upgrade on itself through the computer 400.

In summary, as an embodiment, a diagnostic device 100 adapted for use with a power tool system component includes:

at least one battery pack interface 110 and at least one tool interface 120;

at least one communication module communicatively coupled to the battery pack 200 and at least one communication module (161, 162, 164, 166) communicatively coupled to the tool 300;

and a processor 150 for controlling the transmission of usage characteristic data related to the battery pack 200 between the at least one communication module (161, 162) communicatively coupled to the battery pack 200 and the battery pack 200, and for controlling the transmission of usage characteristic data related to the tool 300 between the at least one communication module (164, 166) communicatively coupled to the tool 300 and the tool 300.

The battery pack interface 110 includes:

a first positive power supply terminal 113 for connecting a positive power supply terminal of the battery pack;

a first negative power supply terminal 116 for connecting a negative power supply terminal of the battery pack;

at least one communication terminal (114 or 115) for connecting the at least one communication terminal of the battery pack with a communication module of the device for communicating with the battery pack to process data of the battery pack, such as: identity information of a battery pack and/or at least one usage characteristic data associated with the battery pack is transmitted.

The tool interface 120 includes:

a second positive power supply terminal 123 for connecting a positive power supply terminal of the power tool with the first positive power supply terminal;

a second negative power supply terminal 126 for connecting a negative power supply terminal of the power tool with the first negative power supply terminal;

at least one communication terminal (124 or 125) for connecting the at least one communication terminal of the power tool with a communication module of the device for communicating with the tool to process data of the tool, such as: transmitting at least one usage characteristic data associated with the power tool or detecting an activation state of the power tool.

Also, a switch is provided between the first negative power supply terminal 116 and the second negative power supply terminal 126, the switch being in an off state when data of the battery pack 200 is processed by the diagnostic apparatus 100; when the tool 300 is subjected to data processing by the diagnostic device 100, the switch is in an open state, and the battery pack 200 supplies power to the tool 300. The switch is also configured to be turned off in time by the processor 150 when an abnormal condition such as an overcurrent occurs during the process of diagnosing the tool 300 by using the diagnostic apparatus 100, so as to cut off the conductive loop between the battery pack 200 and the tool 300 and protect the battery pack 200.

According to the structure of the diagnosis device 100 described above, at least two types of interfaces are integrated, so that processing and/or diagnosis of data of the battery pack 200 and processing and/or diagnosis of data of the tool 300 can be simultaneously realized, the structure is simplified, the carrying is convenient, maintenance of tools and/or battery packs is facilitated, and user experience of users is improved.

As an embodiment, the apparatus 100 further comprises a voltage measuring module 160, wherein the voltage measuring module 160 is disposed on the conductive loop between the first positive power supply terminal 113 and the first negative power supply terminal 116, and is used for detecting the voltage of the battery pack 200 under the control of the processor 150.

In one embodiment, at least one communication terminal of the battery pack 200, such as the identification resistor 211, is disposed between the second communication terminal 203 and the negative power terminal 204 thereof; the diagnostic apparatus 100 further comprises an identification resistance measurement module 163, wherein the identification resistance measurement module 163 is connected to the at least one communication terminal (114 or 115) of the battery pack interface 110, and is configured to obtain a voltage value across the identification resistance 211 under the control of the processor 150.

In one embodiment, the diagnostic apparatus 100 suitable for tool system components is connected to a computer 400, and a display interface of the computer 400 prompts a user to make product type and function selections, such as: the method comprises the steps of performing fault diagnosis on the battery pack, performing software upgrade on the battery pack, performing fault diagnosis on the tool, and performing software upgrade on the tool. As shown in FIG. 6, computer 400 receives a user selection of a product type and function, as in step 501, and selects a corresponding process according to the user selection, as in step 502. The corresponding process performed by the computer may be as in step 503, if the selected function is a diagnostic function and the product type is a battery pack, the computer 400 sends a command for diagnosing the battery pack to the diagnostic apparatus 100, and if the product type is a tool, the computer 400 sends a command for diagnosing the tool to the diagnostic apparatus 100; subsequently, as shown in step 504, the computer 400 receives the data of the battery pack or the tool transmitted from the diagnostic apparatus 100; after the computer 400 performs data processing such as parsing and analyzing on the received data of the battery pack or the tool as in step 505, the processed data is displayed as in step 506, or may be further sent to a server for subsequent functions such as data statistics and data analysis. If the selected function is an upgrade function and the product type is a battery pack, the computer 400 sends a command for upgrading the battery pack to the diagnostic apparatus 100, and if the product type is a tool, the computer 400 sends a command for upgrading the tool to the diagnostic apparatus 100, so as to prompt the diagnostic apparatus 100 and the tool to prepare for upgrading work; subsequently, the computer 400 transmits an upgrade data packet to the diagnostic apparatus 100 as by step 508, and displays the progress of the upgrade in real time as by step 509 according to the feedback of the diagnostic apparatus 100.

As an implementation manner, the tool cannot operate normally, the tool may have a fault, the battery pack may have a fault, or a communication between the battery pack and the tool has a fault, which is difficult for a user to determine by himself, so that the battery pack and the tool are brought to a vendor or a maintenance service site, and a maintenance worker performs fault diagnosis for the battery pack and the tool, respectively. As shown in fig. 3, the diagnostic apparatus 100 suitable for tool system components is connected to a computer 400, the battery pack 200 is inserted into the battery pack interface 110, and a service person selects to perform fault diagnosis on the battery pack according to a prompt on a display interface of the computer 400.

Referring to fig. 2, fig. 7 and fig. 8, the process of diagnosing the fault of the battery pack by using the diagnostic apparatus 100 for tool system components is described, wherein in step 601 or step 701, after receiving the product type and function selected by the user, the computer sends a diagnostic battery pack command to the diagnostic apparatus 100; as shown in step 602 or step 702, after the processor of the diagnostic apparatus 100 receives the diagnostic battery pack command from the computer 400, the third switch 172 is turned on, and a wake-up command, such as a high-level signal, is sent to the battery pack 200 or the battery pack 200' through the first communication terminal 114; after the battery pack 200 or 200' receives the wake-up command, as shown in step 603 or 703, the identity information, such as the battery pack model, is sent to the diagnostic apparatus 100 through the first communication terminal 114; the diagnosis device 100 determines whether it has a self-diagnosis function according to the identity information of the battery pack, and may transmit the battery pack identity information to the computer 400 as shown in step 604 or step 704; if the battery pack belt has a self-diagnosis function, such as the battery pack 200, transmitting the diagnosis data of the battery pack according to the steps 605 to 617; if the battery pack does not have the self-diagnosis function, such as the battery pack 200', the data detection of the battery pack or the transmission of the data detected by the battery pack itself is performed according to the steps 705 to 710 to realize the diagnosis function.

The fault diagnosis of the battery pack 200 includes, but is not limited to, determining whether a fuse is damaged by detecting voltages at both ends of the internal circuit fuse, determining whether the battery pack is damaged by detecting a voltage imbalance degree between cells in the battery pack, determining whether the battery pack is damaged by detecting whether a voltage of a single cell of the battery pack is lower than a preset threshold, determining whether the battery pack is damaged by determining whether a number of consecutive charging failures of the battery pack exceeds the preset threshold, and the like. In short, the battery pack is referred to as self-diagnosis of the battery pack, in which the result of the diagnosis is obtained by analyzing the real-time data, the historical data, and the statistical data of the battery pack according to the predetermined rule. The battery packs may be divided into the battery pack with and without self-diagnosis according to whether the diagnostic analysis function is provided, such as the battery pack 200 and the battery pack 200 'described above, and both of the battery packs may employ the module shown in fig. 4, have the same circuit structure and mechanical structure, except that the battery pack 200 is provided with the diagnostic analysis function and the battery pack 200' is not provided with the diagnostic analysis function in terms of software processing.

The transmission process of the battery pack diagnostic data in steps 605 to 617 will be described with reference to fig. 2 and 7. After the diagnostic device 100 recognizes that the battery pack 200 is a battery pack with self-diagnostic function, the processor 150 thereof opens the fourth switch 173 to conduct the second communication module 162 and the second communication terminal 115, that is: a diagnostic data transmission path between the diagnostic device 100 and the battery pack 200 is established through the second communication terminal 115. Before the diagnostic data is transmitted, in step 605 to step 606, in order to improve the reliability of the data transmission, the diagnostic device 100 sends a handshake instruction to the battery pack 200, the battery pack 200 replies the handshake instruction to the diagnostic device 100 after receiving the handshake instruction, and if the diagnostic device 100 does not receive the feedback of the battery pack 200 within a preset time period, in step 607, the handshake instruction is sent again until the sending times reaches a preset threshold and then the sending is stopped; if the diagnostic device 100 receives the handshake instruction fed back by the battery pack 200, the diagnostic device starts to transmit diagnostic data; the computer 400 receives the user's selection of the diagnostic data or transmits a command to read the diagnostic data to the diagnostic device 100 in a predetermined sequence as in

step

608 or 613, the diagnostic device 100 forwards the command to the battery pack 200 as in

step

609 or 614, the battery pack performs self-diagnosis, and the diagnostic device 100 transmits the diagnostic data to the diagnostic device 100 as in

step

610 or 615 as in

step

611 or 616, and the diagnostic device 100 forwards the diagnostic data to the computer 400 for data processing such as display, statistical analysis, and the like. The diagnostic apparatus 100 realizes the acquisition of the diagnostic data 1 to the diagnostic data n according to the transmission procedures of steps 608 to 612 and steps 613 to 617. In the process of acquiring the diagnostic data, if the diagnostic apparatus 100 does not receive the battery pack feedback diagnostic data within the preset time period after forwarding the command for reading the diagnostic data to the battery pack 200, optionally, the diagnostic apparatus 100 may, as in step 611 or step 616, re-send the command until the corresponding data feedback is acquired or the preset number of sending times is reached, stop sending the command, and feed back the information that the data acquisition fails to the computer.

After the battery pack 200 completes the corresponding self-diagnosis according to the instruction of the diagnosis device 100, the diagnosis result may be fed back to the diagnosis device 100 by using a preset flag, for example: by using 0 in the secondary system code to indicate no fault and 1 to indicate fault, the related technicians can set specific data format according to actual conditions.

In this embodiment, the first communication terminal 114 is used to send the control command related to the battery pack, and the second communication terminal 115 is used to send the diagnostic data, so that the communication terminal of the battery pack can be effectively compatible, and when the third adapting portion of the battery pack 200 is separated from the charger or the tool and can be directly connected to the first adapting portion of the diagnostic apparatus 100, the communication function can be quickly realized, thereby reducing the use of accessories and reducing the hardware cost. As another embodiment, the communication between the device 100 and the battery pack 200 may be implemented by only one communication terminal.

The transmission of the test data from step 705 to step 710 using the diagnostic device 100 for tool system components to the battery pack 200' without self-diagnosis will be described with reference to fig. 2 and 8. As step 705, the computer 400 sends a command to the diagnostic apparatus 100 to read the battery pack detection data; the diagnosis device 100 forwards a command to read the battery pack detection data to the battery pack 200' through the first communication terminal 114 as by step 706; as step 707, the battery pack 200' detects the corresponding data and feeds back the detection result to the apparatus 100 through the first communication terminal 114; the diagnosis device 100 forwards the detection result of the battery pack to the computer 400 as by step 708. Namely: the transmission of the detection data of the battery pack is realized through the first communication terminal. The computer 400 transmits a command for detecting the battery pack to the diagnosis device 100 as by step 709; in step 710, the diagnostic device 100 detects the battery pack 200' and feeds back the device detection data, which is the detection result, to the computer 400. Finally, the computer 400 analyzes the battery pack detection data and the device detection data according to a preset rule to obtain a diagnosis result, displays the diagnosis result, and/or sends the diagnosis result to a remote server for data processing such as statistical analysis and remote monitoring.

As an embodiment, taking the case of diagnosing whether the battery pack has a fault through the total voltage of the battery pack, the preset diagnostic analysis rule includes: the difference | V1-V2| between the voltage value V1 detected by the battery pack and the voltage value V2 detected by the device exceeds a preset threshold Th1, and | indicates absolute value. Specifically, the diagnosis device 100 receives a command for diagnosing the voltage of the battery pack, which is sent by the computer 400, and the diagnosis device 100 receives the cell voltage detected by the battery pack through the first communication terminal 114 and forwards the cell voltage to the computer 400; the device 100 turns on the second switch 171, the voltage detection module 160 is connected to the positive power terminal of the battery pack, the total voltage of the battery pack can be detected, and the device 100 sends the detected total voltage of the battery pack to the computer 400; the computer 400 accumulates the cell voltages to obtain a total voltage of the battery pack, and compares the total voltage with the total voltage detected by the apparatus, to determine whether the battery pack has a fault, for example, a fault may occur in an electrical parameter detection unit in the battery pack.

As an embodiment, taking the example of determining whether a short circuit or an open circuit fault occurs by detecting the voltage across the identification resistor 211 in the battery pack, the preset diagnostic analysis rule includes: if the voltage value detected by the identification resistance measuring module 163 in the diagnostic apparatus 100 is within the preset range, it is identified that the short circuit or open circuit fault has not occurred in the resistance. Specifically, the diagnostic apparatus 100 receives a command for diagnosing the identification resistor of the battery pack sent by the computer 400, turns on the fourth switch 173, turns on the identification resistor measuring module 163 and the second communication terminal 115, the identification resistor measuring module 163 detects the voltage across the identification resistor 211, and feeds the detection result back to the computer 400, and the computer 400 determines whether the detected voltage value is within a preset range according to a preset diagnostic analysis rule, so as to obtain a fault diagnosis result of the identification resistor.

As an embodiment, whether a temperature detection unit, especially a temperature measurement element, in a battery pack has a fault is determined by detecting the temperature in the battery pack, and when the battery pack is detected, the temperature in the battery pack and the temperature in the diagnostic device 100 both approach the ambient temperature, and accordingly, the preset diagnostic and analysis rule includes: and if the difference value | T1-T2| between the temperature value T1 detected by the battery pack and the temperature difference value T2 detected by the device exceeds a preset threshold Th2, the temperature measuring element in the battery pack is considered to have a fault, and | x | represents absolute value. Specifically, the diagnostic apparatus 100 receives a command for diagnosing the battery pack temperature detection unit sent by the computer 400, and sends the temperature value detected by the internal temperature detection module 180 to the computer 400; the diagnosis device 100 receives the temperature value detected by the battery pack through the first communication terminal 114 and forwards the temperature value to the computer 400; finally, the computer 400 compares the temperature of the battery pack measured by the diagnostic apparatus 100 with the temperature value detected by the battery pack according to a preset fault analysis rule, and determines whether a fault exists in the temperature detection unit of the battery pack.

Preferably, when the temperature measuring element in the battery pack, the identification resistor and the reference temperature measuring element in the device adopt the positive temperature coefficient thermistor PTC or the negative temperature thermistor NTC with the same electrical parameter, whether one of the temperature measuring element in the battery pack, the identification resistor and the reference temperature measuring element in the device has the electrical parameter change can be further obtained.

The skilled person can set more hardware and software modules in the battery pack 200 or 200' and/or the diagnostic apparatus 100 according to actual needs to realize the detection of using the diagnostic information for more battery packs. Of course, the analysis rule for obtaining the diagnosis result may be built in the diagnosis device 100, and the diagnosis device 100 transmits the obtained diagnosis result to the computer 400 for display, or the diagnosis analysis rule may be built in the battery pack to form the battery pack 200 with the self-diagnosis function as described above.

In summary, during the diagnosis process of the battery pack by the diagnosis device 100, the first communication terminal 114 is used to transmit the operation command with the battery pack 200 or transmit the operation command and the detection data with the battery pack 200'; the second communication terminal 115 is multiplexed, so that the transmission of the diagnostic data of the battery pack 200 can be realized, the detection of the temperature measuring element in the battery pack 200' can be realized, and the communication terminal of the battery pack can be effectively compatible. Meanwhile, the use frequency of the first communication terminal 114 and the second communication terminal 115 is balanced, and the service life of the terminals is prolonged. As another embodiment, the communication between the device 100 and the battery pack 200' may be implemented by only one communication terminal.

As an embodiment, the service personnel perform fault diagnosis for the tools individually. As shown in fig. 3, the apparatus 100 for tool system components is connected to a computer 400, a tool is inserted into the tool interface 120, a battery pack 200 is inserted into the battery pack interface 110, a maintenance person selects to perform fault diagnosis on the tool according to a display interface prompt of the computer 400, and the computer 400 displays a prompt for starting the tool.

The utility model discloses in fully consider functional compatibility, for example some instruments only have self-diagnostic function, for example instrument 300, and some instruments have self-diagnosis and upgrading (bootloader) function, for example instrument 300'.

The process of diagnosing the tool 300 by using the diagnostic device 100 for tool system components will be described with reference to fig. 2 and 9. In step 801, the diagnostic apparatus 100 turns on the first switch 170 to connect the power supply terminal of the tool 300 to the battery pack 200 after receiving the tool diagnosis command from the computer 400, turns on the fifth switch 178 to connect the tool connection state detection module 165 to the third communication terminal 124, and waits for the tool 300 to be started; in step 802, after the tool 300 is started, the diagnostic apparatus 100 detects a high level signal at the third communication terminal 124 to know that the tool is started successfully; in step 803, the device 100 switches the fifth switch 178 to the third communication module 164, so that the third communication module 164 is conducted to the third communication terminal 124, and the device 100 can send a wake-up command through the third communication terminal 124, for example: send a low signal to the tool 300; for the tool 300 with only the diagnostic function, upon receiving the wake-up command transmitted by the diagnostic apparatus 100, the diagnostic mode can be entered, and as step 804, information that the diagnostic apparatus 100 has entered the diagnostic mode itself is fed back through the fourth communication terminal 125; the diagnostic apparatus 100 forwards the information to the computer 400 as in step 805, and then the diagnostic apparatus 100 forwards the diagnostic data of the tool 300 to the computer 400 through the fourth communication terminal 125 as in steps 806 to 810, specifically, the computer 400 receives the selection of the diagnostic data by the user or sends a command to read the diagnostic data to the diagnostic apparatus 100 in a preset sequence as in step 806, the diagnostic apparatus 100 forwards the command to the tool 300 as in step 807, the tool 300 performs self-diagnosis, and sends the diagnostic data to the diagnostic apparatus 100 as in step 808, the diagnostic apparatus 100 forwards the diagnostic data to the computer 400 as in step 810 for data processing such as display, statistical analysis, and the like. In the process of acquiring the diagnostic data, if the diagnostic apparatus 100 does not receive the feedback diagnostic data from the tool 300 within the preset time period after forwarding the command for reading the diagnostic data to the tool 300, optionally, in step 809, the diagnostic apparatus 100 may send the command for reading the diagnostic data again until the corresponding data feedback is acquired, and preferably, after the preset number of sending times is reached, stop sending the command, and feed back the information that the data acquisition fails to the computer.

The process of diagnosing the tool 300' by using the diagnostic device 100 for tool system components will be described with reference to fig. 2 and 10. In step 901, the diagnostic apparatus 100 turns on the first switch 170 after receiving the command for diagnosing the tool sent by the computer 400, so as to turn on the power terminals of the battery pack 200 and the tool 300 ', turns on the fifth switch 178 so as to turn on the tool connection state detection module 165 and the third communication terminal 124, and waits for the tool 300' to be started; after the tool 300' is started, the diagnostic apparatus 100 detects the high signal at the third communication terminal 124 to know that the tool is successfully started, as shown in step 902; in step 903, the diagnostic apparatus 100 switches the fifth switch 178 to the third communication module 164, so as to conduct between the third communication module 164 and the third communication terminal 124, and the tool 300' can send a wake-up command through the third communication terminal 124, for example: send a low signal to tool 300'; for the tool 300 'having both self-diagnosis and upgrade (bootloader) functions, it is impossible to specify whether it should enter the diagnosis mode or upgrade mode after receiving the wake-up command, as in step 904, the tool 300' transmits its identity information, e.g., tool model, software version information, to the diagnosis apparatus 100 through the fourth communication terminal 125; in step 905, after receiving the identity information sent by the tool, the diagnostic apparatus 100 learns the function status of the tool, and forwards the identity information to the computer 400; the diagnostic device 100 sends a command to the tool 300' to enter a diagnostic mode as in step 906; in step 907, the tool 300' enters the diagnostic mode after receiving the command, and feeds back information that the tool itself has entered the diagnostic mode to the diagnostic apparatus 100; after the diagnostic device 100 receives the feedback that the tool 300 ' itself has entered the diagnostic mode, the computer 400 is informed, and then in step 909, the computer 400 receives the user's selection of the diagnostic data or sends a command to the diagnostic device 100 to read the diagnostic data according to a preset sequence, in step 910, the diagnostic device 100 forwards the command to the tool 300, the tool 300 ' performs self-diagnosis, and in step 911, the diagnostic data is sent to the diagnostic device 100, in step 913, the diagnostic device 100 forwards the diagnostic data to the computer 400 for data processing such as display, statistical analysis, and the like.

Optionally, but not necessarily, in order to improve reliability of data transmission, if the diagnostic apparatus 100 does not receive feedback of the tool 300 'within a preset time period after sending the command to enter the diagnostic mode, in step 908, the command to enter the diagnostic mode may be sent to the tool 300' again until corresponding feedback is obtained, and preferably, when the number of times of the command sent by the diagnostic apparatus 100 reaches a preset threshold, the sending is stopped, and information indicating that data acquisition fails is fed back to the computer. In the process of acquiring the diagnostic data, if the diagnostic apparatus 100 does not receive the feedback diagnostic data from the tool 300 'within the preset time period after forwarding the command for reading the diagnostic data to the tool 300', optionally, in step 912, the diagnostic apparatus 100 may send the command for reading the diagnostic data again until the corresponding data feedback is acquired, and preferably, after the preset number of times of sending is reached, stop sending the command, and feed back the information that the data acquisition fails to the computer.

The fault diagnosis of the tool 300 described above includes, but is not limited to: when the tool 300 is started, if it is detected that the third communication terminal 124 is at a high level but communication between the tool 300 and the diagnostic apparatus 100 is not possible, there may be a failure in the contact between the fourth communication terminal 125 and the tool 300, a failure in the communication module inside the tool 300 matching the terminal, or a failure in the fourth communication module 166 in the diagnostic apparatus 100; if a deviation in the motor speed of the tool 300 is detected that exceeds a predetermined threshold, a fault may exist in the motor, or in the processing unit of the tool. In summary, the tool 300 is referred to as self-diagnosis of the tool, in which the tool uses the detected real-time data, historical data, and statistical data to perform analysis according to the predetermined rules. The skilled person can set more hardware and software modules in the diagnostic apparatus 100 according to actual needs to implement the detection of more tool usage characteristic information. Of course, the analysis rules for the diagnosis result acquisition may also be built into the diagnosis apparatus 100 and/or the computer 400.

In this embodiment, in the process of diagnosing the tool 300 by the diagnostic apparatus 100, the third communication terminal 124 is multiplexed to detect the connection state of the device on the one hand and to transmit the operation command between the diagnostic apparatus 100 and the tool 300 on the other hand; the transmission of the diagnostic data is realized by means of the fourth communication terminal 125. The communication terminal of the tool can be effectively compatible, so that the communication function can be quickly realized when the fourth adapting part of the tool 300 is directly connected with the second adapting part of the device 100 when the fourth adapting part is separated from the battery pack, the use of accessories is reduced, and the hardware cost is reduced. Meanwhile, the use frequencies of the third communication terminal 124 and the fourth communication terminal 125 are balanced, and the service life of the terminals is prolonged. As another embodiment, the communication between the diagnostic apparatus 100 and the tool 300 may be realized by only one communication terminal.

As an embodiment, the diagnostic apparatus 100 is used to perform software upgrade on the battery pack 200, as shown in fig. 3, the diagnostic apparatus 100 suitable for tool system components is connected to the computer 400, the battery pack 200 is inserted into the battery pack interface 110, and the maintenance personnel selects to upgrade the battery pack according to the prompt of the display interface of the computer 400.

Referring to fig. 2 and 11, the process of upgrading software of a battery pack by using the diagnostic apparatus 100 for tool system components is described, where in step 1001, after receiving a product type and a function selected by a user, the computer 400 sends a battery pack upgrading command to the diagnostic apparatus 100; as shown in step 1002, after the processor 150 of the diagnostic apparatus 100 receives the upgrade battery pack command from the computer 400, it opens the third switch 172, and sends a wake-up command, such as a high-level signal, to the battery pack 200 through the first communication terminal 114; after the battery pack 200 receives the wake-up command, in step 1003, it sends its identity information, such as the battery pack model and software version information, to the diagnostic apparatus 100 through the first communication terminal 114; the diagnostic apparatus 100 determines whether it can be upgraded according to the identity information of the battery pack, and sends the battery pack identity information to the computer 400 as in step 1004; after the diagnostic device 100 confirms that the battery pack 200 can be upgraded, the processor 150 thereof turns on the fourth switch 173 to make the second communication module 162 and the second communication terminal 115 conductive, and sends the upgrade key to the battery pack 200 through the second communication terminal 115, that is: establishing a data transmission path of the upgrade package through the second communication terminal 115; as step 1006, the battery pack 200 receives the upgrade key, confirms the upgrade, and replies the confirmation upgrade to the diagnostic apparatus 100 through the first communication terminal 114; as step 1008, the device 100 forwards the confirm upgrade reply to the computer 400; in steps 1009 to 1013, the computer 400 sends the upgrade package to the battery pack 200 through the diagnosis device 100 according to a preset sequence or a sending rule, and after receiving the upgrade package, the battery pack 200 sends a reply confirming the receipt to the computer 400 through the diagnosis device 100, so as to improve the reliability of data transmission and facilitate the display of the upgrade progress by the computer 400; after the computer 400 finishes sending the upgrade package, as in steps 1014 to 1017, the computer 400 sends an upgrade end flag to the battery package 200 through the diagnostic device 100, and after the battery package 200 receives the upgrade end flag, the upgrade of the software thereof is completed, and the upgrade completion is fed back to the computer 400 through the diagnostic device 100, so that the computer 400 displays the upgrade progress.

Optionally, but not necessarily, if the diagnostic apparatus 100 does not receive the feedback of the battery pack 200 within the preset time period after sending the upgrade key, in step 1007, the upgrade key may be sent to the battery pack 200 again until the corresponding feedback is obtained, and preferably, the sending is stopped when the number of times of the command sent by the diagnostic apparatus 100 reaches the preset threshold, and the information that the data acquisition fails is fed back to the computer. In the transmission process of the upgrade package, optionally, if the diagnostic apparatus 100 does not receive the feedback of the battery package 200 according to the preset condition after sending the upgrade package, the diagnostic apparatus 100 may send the upgrade package again until the corresponding data feedback is obtained or the preset sending times is reached, stop sending the command, and feed back the information that the data acquisition fails to the computer, as in step 1012.

As another embodiment, the diagnostic apparatus 100 may also perform transmission of an upgrade data packet through the first communication terminal 114 after confirming that the battery pack 200 is available for upgrade through the battery pack identification information.

In one embodiment, the tool 300 'with upgrading function is upgraded by using the diagnostic device 100, as shown in fig. 3, the diagnostic device 100 suitable for the tool system component is connected to the computer 400, the tool 300' is inserted into the tool interface 120, the battery pack 200 is inserted into the battery pack interface 110, the maintenance personnel selects to upgrade the tool according to the prompt of the display interface of the computer 400, and the computer 400 displays the prompt for starting the tool.

The process of upgrading software of the tool 300 by using the diagnostic apparatus 100 suitable for the tool system component will be described with reference to fig. 2 and 12. In step 1101, after receiving the command for upgrading the software of the tool sent by the computer 400, the diagnostic apparatus 100 turns on the first switch 170 to connect the power terminals of the battery pack 200 and the tool 300 ', turns on the fifth switch 178 to connect the tool connection state detection module 165 and the third communication terminal 124, and waits for the tool 300' to start; in step 1102, after the tool 300' is started, the diagnostic apparatus 100 detects a high signal at the third communication terminal 124 to know that the tool is started successfully; in step 1103, the diagnostic apparatus 100 switches the fifth switch 178 to the third communication module 164, so as to conduct the third communication module 164 and the third communication terminal 124, and the tool 300' can send a wake-up command through the third communication terminal 124, for example: send a low signal to the tool 300; as step 1104, the tool 300' sends its identity information, such as tool model number, software version information, to the diagnostic device 100 through the fourth communication terminal 125; in step 1105, the diagnostic apparatus 100 determines whether the tool can be upgraded according to the identity information of the tool, and sends the tool identity information to the computer 400; in step 1106, the diagnostic device 100 confirms that the tool 300 'can be upgraded and then sends the upgrade key to the tool 300' through the fourth communication terminal 125; as step 1107, the tool 300' receives the upgrade key, confirms the upgrade, and replies to the diagnostic device 100 with the confirmed upgrade through the third communication terminal 124; in step 1109, the diagnostic apparatus 100 forwards the confirmation upgrade reply to the computer 400; in steps 1110 to 1114, the computer 400 sends the upgrade package to the tool 300 'via the diagnostic apparatus 100 according to a preset sequence or a sending rule, and after receiving the upgrade package, the tool 300' sends a reply confirming the receipt to the computer 400 via the diagnostic apparatus 100, so as to improve the reliability of data transmission and facilitate the display of the upgrade progress by the computer 400; after the computer 400 sends the upgrade package, in step 1115 to step 1119, the computer 400 sends an upgrade end flag to the tool 300 'through the diagnostic device 100, and after the tool 300' receives the upgrade end flag, the upgrade of the software thereof is completed, and the upgrade completion is fed back to the computer 400 through the diagnostic device 100, so that the computer 400 displays the upgrade progress.

In another embodiment, the diagnostic apparatus 100 may also transmit the upgrade package through the third communication terminal 124 after confirming that the tool 300' is available for upgrade.

In the data transmission process, in order to improve the reliability of the data transmission, after the diagnostic apparatus 100 sends a corresponding command to the tool 300 ', if the feedback of the tool is not received within a preset time period, the diagnostic apparatus 100 sends the corresponding command to the tool 300 ' again in step 1108, step 1113 or step 1118 until the feedback of the tool 300 ' is received; of course, in order to prevent infinite loop of data transmission, if the diagnostic apparatus 100 sends a certain identical command more than a preset number of times, it stops sending the identical command to the tool 300'.

As an embodiment, in the process of data transmission between the diagnostic apparatus 100 and tool system components such as a battery pack and a tool, when a preset condition is satisfied, if the diagnostic apparatus 100 still does not receive data or feedback information sent to the tool system components, it may select to send information representing communication failure, data reading failure, and the like to the computer 400, so that the computer 400 displays the information to remind a maintenance person to perform corresponding operations.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A diagnostic device adapted for use with a tool system component for diagnosis of the tool system component, the diagnostic device comprising:

at least one interface for connecting the tool system components;

at least one communication module for communicating at least one usage characteristic data associated with a tool system component with the tool system component via the at least one interface;

a processor for controlling the transmission of the usage characteristic data associated with the tool system component.

2. The diagnostic device of claim 1, wherein the tool system component is at least one of a battery pack or a power tool.

3. The diagnostic device adapted for use with a tool system component according to claim 1, wherein the tool system component comprises a battery pack including at least one communication terminal, the interface of the diagnostic device comprises a battery pack interface comprising:

4. The diagnostic device adapted for use with a tool system component of claim 3, further comprising a voltage measurement module disposed on the conductive loop between the first positive power supply terminal and the first negative power supply terminal for detecting a voltage of a battery pack under control of the processor.

5. The diagnostic device of claim 3, wherein an identification resistor is disposed between at least one communication terminal of the battery pack and its negative power supply terminal; the diagnostic device further comprises an identification resistance measurement module, wherein the identification resistance measurement module is connected with the at least one communication terminal of the battery pack interface and used for acquiring a voltage value at two ends of the identification resistance under the control of the processor.

6. The diagnostic device of claim 3 adapted for use with a tool system component, wherein the tool system component comprises a power tool, the power tool comprising at least one communication terminal, the interface of the diagnostic device comprising a tool interface, the tool interface comprising:

7. The diagnostic device adapted for use with a tool system component of claim 3,

the tool system component comprises a power tool, the interface of the diagnostic device comprises a tool interface, the tool interface comprising:

8. The diagnostic device of any one of claims 1 to 7, further comprising an external device interface, wherein the device is configured to transmit at least one type of usage characteristic data associated with the tool system component to the outside via the external device interface.