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home_en_G1_developer_robot_state_client_interface.md

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Source: https://support.unitree.com/home/en/G1_developer/robot_state_client_interface

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RobotStateClient class

RobotStateClient is a client provided by the device state service. Through RobotClient, it is convenient to control the internal services of G1, obtain service status, device status, and system resource usage information through RPC (some functional interfaces are not yet open).

This interface is reused from the device status service interface of B2. You can find the relevant resources at the following location in the SDK.

unitree_sdk2\include\unitree\robot\b2\robot_state //C++
unitree_sdk2py\b2\robot_state #Python
unitree_ros2\example\src\include\common\ros2_robot_state_client.h //ROS2

List of interface error codes:

Error number Error description Remarks
5201 Service switch execution error Server return
5202 The service is protected and cannot be turned on or off Server return

Class and interface description:

Class Name Creation and Deconstruction
RobotStateClient explicit RobotStateClient(); ~RobotStateClient();
Function name ServiceSwitch
Function prototype int32_t ServiceSwitch(const std::string& name, int32_t swit, int32_t& status)
Function overview Service switch.
Parameter name: service name swit: switch, value 1 for on, 0 for off. status: service status after the operation is executed (0: on, 1: off)
Return value Return 0 if the call is successful, otherwise return the relevant error code.
Remark
Function Name SetReportFreq
Function Prototype int32_t SetReportFreq(int32_t interval, int32_t duration)
Function Overview Set the frequency of service status reporting
Parameter interval: Set the reporting time interval in seconds duration: Set the duration in seconds
Return Value If the call is successful, 0 will be returned. Otherwise, relevant error codes will be returned
Note Currently, the app's service status function is used and the refresh frequency is set

Service Name List

Service Name Description
ai_sport Main Motion Control Service
basic_service Basic Service
g1_arm_example Upper Limb Motion Service
vui_service Audio and Lighting Control Service
unitree_slam Navigation Service