| | |
| | | #include "GPS.h" |
| | | #include "GPIO.h" |
| | | #include "Uart.h" |
| | | #include "geo_utils.h" |
| | | #include "UDPClient.h" |
| | | // #include "global_param.h" |
| | | |
| | | #define GPS_UART_RX_BUF_SIZE 1024 |
| | | #define GPS_UART_TX_BUF_SIZE (2048 + 512) |
| | | |
| | | #define IM23A_HEADER_LEN (4U) |
| | | #define IM23A_NAV_FRAME_LEN (100U) /* 包含头、负载、校验和及尾部 */ |
| | | #define IM23A_IMU_FRAME_LEN (52U) |
| | | #define IM23A_NAV_FRAME_LEN (100U) /* fmin: 包含头、负载、校验和及尾部 */ |
| | | #define IM23A_IMU_FRAME_LEN (52U) /* fmim: IMU数据帧 */ |
| | | #define IM23A_GIG_FRAME_LEN (95U) /* fmig: GPS导航数据帧 */ |
| | | #define IM23A_MAX_FRAME_LEN IM23A_NAV_FRAME_LEN |
| | | #define IM23A_CHECKSUM_LEN (2U) |
| | | #define IM23A_TAIL_LEN (2U) |
| | | #define IM23A_NAV_HEADER "fmin" |
| | | #define IM23A_IMU_HEADER "fmim" |
| | | #define IM23A_GIG_HEADER "fmig" |
| | | #define IM23A_GPS_TIME_SCALE (100.0) /* hhmmss.ss -> centisecond */ |
| | | #define IM23A_IMU_TIME_SCALE (1000.0) /* hhmmss.ss -> millisecond */ |
| | | |
| | |
| | | static HIDO_UINT32 l_u32QXTick = 0; |
| | | HIDO_UINT32 getRTK_Tick = 0; |
| | | |
| | | /* 存储最新的GPRMI和GPIMU数据 */ |
| | | /* 存储最新的GPRMI、GPIMU和GPGIG数据 */ |
| | | static ST_GPRMI l_stGPRMI; |
| | | static ST_GPIMU l_stGPIMU; |
| | | static ST_GPGIG l_stGPGIG; |
| | | static HIDO_UINT32 s_gprmi_log_idx = 0U; |
| | | |
| | | /* ENU坐标系原点(开机后第一个固定解时初始化) */ |
| | | static ST_GeoOrigin l_stGeoOrigin = {0}; |
| | | static float l_fCurrentENU[3] = {0.0f, 0.0f, 0.0f}; |
| | | |
| | | /* GPS���� */ |
| | | /******************************************************************************* |
| | | * IM23A Helper Declarations * |
| | |
| | | static HIDO_VOID IM23A_HandleFrame(const HIDO_UINT8 *frame, HIDO_UINT32 len); |
| | | static HIDO_VOID IM23A_HandleNavFrame(const HIDO_UINT8 *frame); |
| | | static HIDO_VOID IM23A_HandleImuFrame(const HIDO_UINT8 *frame); |
| | | static HIDO_VOID IM23A_HandleGigFrame(const HIDO_UINT8 *frame); |
| | | static HIDO_DOUBLE IM23A_ReadDouble(const HIDO_UINT8 *ptr); |
| | | static HIDO_FLOAT IM23A_ReadFloat(const HIDO_UINT8 *ptr); |
| | | static HIDO_UINT32 IM23A_ReadU32(const HIDO_UINT8 *ptr); |
| | |
| | | return HIDO_FALSE; |
| | | } |
| | | |
| | | if ((len != IM23A_NAV_FRAME_LEN) && (len != IM23A_IMU_FRAME_LEN)) |
| | | if ((len != IM23A_NAV_FRAME_LEN) && (len != IM23A_IMU_FRAME_LEN) && (len != IM23A_GIG_FRAME_LEN)) |
| | | { |
| | | return HIDO_FALSE; |
| | | } |
| | |
| | | { |
| | | IM23A_HandleImuFrame(frame); |
| | | } |
| | | else if (len == IM23A_GIG_FRAME_LEN && memcmp(frame, IM23A_GIG_HEADER, IM23A_HEADER_LEN) == 0) |
| | | { |
| | | IM23A_HandleGigFrame(frame); |
| | | } |
| | | } |
| | | |
| | | static HIDO_VOID IM23A_HandleNavFrame(const HIDO_UINT8 *frame) |
| | |
| | | l_stGPRMI.m_fNorthVelocity = vel_n; |
| | | l_stGPRMI.m_fEastVelocity = vel_e; |
| | | l_stGPRMI.m_fUpVelocity = (HIDO_FLOAT)(-vel_d); |
| | | l_stGPRMI.m_fRollAngle = roll; |
| | | l_stGPRMI.m_fPitchAngle = pitch; |
| | | l_stGPRMI.m_fHeadingAngle = heading; |
| | | /* IM23A协议中 roll/pitch/heading 均为弧度,需转换为角度 */ |
| | | l_stGPRMI.m_fRollAngle = roll * 57.29577951308232f; // RAD2DEG |
| | | l_stGPRMI.m_fPitchAngle = pitch * 57.29577951308232f; // RAD2DEG |
| | | l_stGPRMI.m_fHeadingAngle = heading * 57.29577951308232f; // RAD2DEG |
| | | |
| | | /* Heading 转换为 0-360 范围 */ |
| | | while (l_stGPRMI.m_fHeadingAngle < 0.0f) |
| | | { |
| | | l_stGPRMI.m_fHeadingAngle += 360.0f; |
| | | } |
| | | while (l_stGPRMI.m_fHeadingAngle >= 360.0f) |
| | | { |
| | | l_stGPRMI.m_fHeadingAngle -= 360.0f; |
| | | } |
| | | l_stGPRMI.m_fHorizontalVelStdDev = pos_accuracy; |
| | | l_stGPRMI.m_fAccelBiasX = accel_bias_x; |
| | | l_stGPRMI.m_fAccelBiasY = accel_bias_y; |
| | |
| | | l_stGPRMI.m_u8PositionQuality = (HIDO_UINT8)(status & 0xFFU); |
| | | l_stGPRMI.m_bValid = HIDO_TRUE; |
| | | |
| | | l_u8PosState = l_stGPRMI.m_u8PositionQuality; |
| | | // l_u8PosState = l_stGPRMI.m_u8PositionQuality; |
| | | |
| | | /* 如果是第一个固定解(解状态=4),初始化ENU原点 */ |
| | | if (l_stGeoOrigin.initialized == HIDO_FALSE && l_u8PosState == 4U) |
| | | { |
| | | Geo_OriginInit(&l_stGeoOrigin, l_stGPRMI.m_dLatitude, l_stGPRMI.m_dLongitude, (double)l_stGPRMI.m_fAltitude); |
| | | HIDO_Debug2("[GPS] ENU origin initialized: lat=%.6f, lon=%.6f, alt=%.2f\r\n", |
| | | l_stGeoOrigin.lat_deg, l_stGeoOrigin.lon_deg, l_stGeoOrigin.alt_m); |
| | | } |
| | | |
| | | /* 计算当前ENU坐标 */ |
| | | if (l_stGeoOrigin.initialized == HIDO_TRUE) |
| | | { |
| | | Geo_GprmiToENU(&l_stGPRMI, &l_stGeoOrigin, l_fCurrentENU); |
| | | } |
| | | } |
| | | |
| | | static HIDO_VOID IM23A_HandleImuFrame(const HIDO_UINT8 *frame) |
| | |
| | | l_stGPIMU.m_bValid = HIDO_TRUE; |
| | | } |
| | | |
| | | static HIDO_VOID IM23A_HandleGigFrame(const HIDO_UINT8 *frame) |
| | | { |
| | | if (IM23A_ValidateFrame(frame, IM23A_GIG_FRAME_LEN) == HIDO_FALSE) |
| | | { |
| | | return; |
| | | } |
| | | |
| | | /* fmig协议解析:解析位置信息、解状态和差分龄期信息 */ |
| | | const HIDO_UINT8 *base = frame; |
| | | |
| | | /* 字段1: 时间 hhmmss.ss (double, 位置5) */ |
| | | double utc = IM23A_ReadDouble(&base[4]); |
| | | |
| | | /* 字段2: 纬度 (double, 位置13) */ |
| | | double latitude = IM23A_ReadDouble(&base[12]); |
| | | |
| | | /* 字段3: 经度 (double, 位置21) */ |
| | | double longitude = IM23A_ReadDouble(&base[20]); |
| | | |
| | | /* 字段14: HRMS (float, 位置73) */ |
| | | float hrms = IM23A_ReadFloat(&base[72]); |
| | | |
| | | /* 字段15: VRMS (float, 位置77) */ |
| | | float vrms = IM23A_ReadFloat(&base[76]); |
| | | |
| | | /* 字段16: HDOP (float, 位置81) */ |
| | | float hdop = IM23A_ReadFloat(&base[80]); |
| | | |
| | | /* 字段17: VDOP (float, 位置85) */ |
| | | float vdop = IM23A_ReadFloat(&base[84]); |
| | | |
| | | /* 字段18: 卫星数量 (uint8_t, 位置89) */ |
| | | HIDO_UINT8 sat_count = base[88]; |
| | | |
| | | /* 字段19: 解状态 (uint8_t, 位置90) */ |
| | | HIDO_UINT8 sol_status = base[89]; |
| | | |
| | | /* 字段20: 差分龄期 (uint8_t, 位置91) */ |
| | | HIDO_UINT8 diff_age = base[90]; |
| | | |
| | | /* 更新GPGIG结构体,包含位置信息 */ |
| | | memset(&l_stGPGIG, 0, sizeof(ST_GPGIG)); |
| | | l_stGPGIG.m_u32UTCTime = IM23A_ConvertTime(utc, IM23A_GPS_TIME_SCALE); |
| | | l_stGPGIG.m_dLatitude = latitude; |
| | | l_stGPGIG.m_dLongitude = longitude; |
| | | l_stGPGIG.m_u8SatelliteCount = sat_count; |
| | | l_stGPGIG.m_u8SolutionStatus = sol_status; |
| | | l_stGPGIG.m_u8DifferentialAge = diff_age; |
| | | l_stGPGIG.m_fHRMS = hrms; |
| | | l_stGPGIG.m_fVRMS = vrms; |
| | | l_stGPGIG.m_fHDOP = hdop; |
| | | l_stGPGIG.m_fVDOP = vdop; |
| | | l_stGPGIG.m_bValid = HIDO_TRUE; |
| | | |
| | | /* 更新全局解状态(用于兼容旧代码) */ |
| | | l_u8PosState = sol_status; |
| | | } |
| | | |
| | | |
| | | static HIDO_VOID GPS_RecvFsm(HIDO_UINT8 _u8RecvChar) |
| | | { |
| | |
| | | { |
| | | parser->m_u32ExpectedLen = IM23A_IMU_FRAME_LEN; |
| | | } |
| | | else if (memcmp(parser->m_au8Buffer, IM23A_GIG_HEADER, IM23A_HEADER_LEN) == 0) |
| | | { |
| | | parser->m_u32ExpectedLen = IM23A_GIG_FRAME_LEN; |
| | | } |
| | | else |
| | | { |
| | | HIDO_UINT8 restart = parser->m_au8Buffer[IM23A_HEADER_LEN - 1U]; |
| | |
| | | |
| | | IM23A_ResetParser(&l_stGPSRecv); |
| | | Uart_ReConfigBaudRate(UART_ID_GPS, 115200); |
| | | |
| | | /* 延时等待GPS模块启动完成 */ |
| | | vTaskDelay(pdMS_TO_TICKS(1000)); |
| | | |
| | | /* 发送AT命令配置GPS模块输出到UART2 */ |
| | | const HIDO_CHAR *at_cmd = "AT+GNSS_OUTPUT=UART2,ON\r\n"; |
| | | Uart_Send(UART_ID_GPS, (HIDO_UINT8 *)at_cmd, strlen(at_cmd)); |
| | | vTaskDelay(pdMS_TO_TICKS(100)); |
| | | const HIDO_CHAR *at_cmd2 = "AT+SAVE_ALL\r\n"; |
| | | Uart_Send(UART_ID_GPS, (HIDO_UINT8 *)at_cmd2, strlen(at_cmd2)); |
| | | /* 等待GPS模块响应 */ |
| | | vTaskDelay(pdMS_TO_TICKS(100)); |
| | | } |
| | | |
| | | /******************************************************************************* |
| | |
| | | return HIDO_OK; |
| | | } |
| | | |
| | | /******************************************************************************* |
| | | * Function Name : GPS_GetCurrentENU |
| | | * Description : 获取当前ENU坐标(相对于开机后第一个固定解) |
| | | * Input : _enu - 存储ENU坐标的数组指针 [东, 北, 天] |
| | | * Output : None |
| | | * Return : HIDO_OK - 成功, HIDO_ERR - 失败或原点未初始化 |
| | | * Author : www.hido-studio.com |
| | | * Modified Date: : 2025年12月3日 |
| | | *******************************************************************************/ |
| | | HIDO_INT32 GPS_GetCurrentENU(float _enu[3]) |
| | | { |
| | | if (_enu == HIDO_NULL) |
| | | { |
| | | return HIDO_ERR; |
| | | } |
| | | |
| | | if (l_stGeoOrigin.initialized == HIDO_FALSE) |
| | | { |
| | | _enu[0] = 0.0f; |
| | | _enu[1] = 0.0f; |
| | | _enu[2] = 0.0f; |
| | | return HIDO_ERR; |
| | | } |
| | | |
| | | _enu[0] = l_fCurrentENU[0]; |
| | | _enu[1] = l_fCurrentENU[1]; |
| | | _enu[2] = l_fCurrentENU[2]; |
| | | |
| | | return HIDO_OK; |
| | | } |
| | | |
| | | /******************************************************************************* |
| | | * Function Name : GPS_GetGPGIG |
| | | * Description : 获取最新的GPGIG数据(fmig报文,解状态和差分龄期) |
| | | * Input : _pstGPGIG - 存储GPGIG数据的结构体指针 |
| | | * Output : None |
| | | * Return : HIDO_OK - 成功, HIDO_ERR - 失败或数据无效 |
| | | * Author : www.hido-studio.com |
| | | * Modified Date: : 2025年12月3日 |
| | | *******************************************************************************/ |
| | | HIDO_INT32 GPS_GetGPGIG(ST_GPGIG *_pstGPGIG) |
| | | { |
| | | if (_pstGPGIG == HIDO_NULL) |
| | | { |
| | | return HIDO_ERR; |
| | | } |
| | | |
| | | if (l_stGPGIG.m_bValid == HIDO_FALSE) |
| | | { |
| | | return HIDO_ERR; |
| | | } |
| | | |
| | | memcpy(_pstGPGIG, &l_stGPGIG, sizeof(ST_GPGIG)); |
| | | |
| | | return HIDO_OK; |
| | | } |
| | | |
| | | /******************************************************************************* |
| | | * Function Name : GPS_ConvertLatToDDMM |
| | | * Description : 将纬度从度数格式转换为度分格式 |
| | | * Input : _dLatDeg - 纬度(度),正数为北纬,负数为南纬 |
| | | * : _pcSign - 输出符号字符 'N' 或 'S' |
| | | * Output : _pcSign |
| | | * Return : 度分格式值 (ddmm.mmmm) |
| | | * Author : www.hido-studio.com |
| | | * Modified Date: : 2025年12月4日 |
| | | *******************************************************************************/ |
| | | static HIDO_DOUBLE GPS_ConvertLatToDDMM(HIDO_DOUBLE _dLatDeg, HIDO_CHAR *_pcSign) |
| | | { |
| | | HIDO_DOUBLE absLat = (_dLatDeg < 0.0) ? -_dLatDeg : _dLatDeg; |
| | | *_pcSign = (_dLatDeg >= 0.0) ? 'N' : 'S'; |
| | | |
| | | HIDO_INT32 degrees = (HIDO_INT32)absLat; |
| | | HIDO_DOUBLE minutes = (absLat - degrees) * 60.0; |
| | | |
| | | return (HIDO_DOUBLE)degrees * 100.0 + minutes; |
| | | } |
| | | |
| | | /******************************************************************************* |
| | | * Function Name : GPS_ConvertLonToDDDMM |
| | | * Description : 将经度从度数格式转换为度分格式 |
| | | * Input : _dLonDeg - 经度(度),正数为东经,负数为西经 |
| | | * : _pcSign - 输出符号字符 'E' 或 'W' |
| | | * Output : _pcSign |
| | | * Return : 度分格式值 (dddmm.mmmm) |
| | | * Author : www.hido-studio.com |
| | | * Modified Date: : 2025年12月4日 |
| | | *******************************************************************************/ |
| | | static HIDO_DOUBLE GPS_ConvertLonToDDDMM(HIDO_DOUBLE _dLonDeg, HIDO_CHAR *_pcSign) |
| | | { |
| | | HIDO_DOUBLE absLon = (_dLonDeg < 0.0) ? -_dLonDeg : _dLonDeg; |
| | | *_pcSign = (_dLonDeg >= 0.0) ? 'E' : 'W'; |
| | | |
| | | HIDO_INT32 degrees = (HIDO_INT32)absLon; |
| | | HIDO_DOUBLE minutes = (absLon - degrees) * 60.0; |
| | | |
| | | return (HIDO_DOUBLE)degrees * 100.0 + minutes; |
| | | } |
| | | |
| | | /******************************************************************************* |
| | | * Function Name : GPS_CalculateNMEAChecksum |
| | | * Description : 计算NMEA协议校验和(XOR) |
| | | * Input : _pcData - 数据字符串(不包含$和*) |
| | | * : _u32Len - 数据长度 |
| | | * Output : None |
| | | * Return : 校验和(0-255) |
| | | * Author : www.hido-studio.com |
| | | * Modified Date: : 2025年12月4日 |
| | | *******************************************************************************/ |
| | | static HIDO_UINT8 GPS_CalculateNMEAChecksum(const HIDO_CHAR *_pcData, HIDO_UINT32 _u32Len) |
| | | { |
| | | HIDO_UINT8 checksum = 0U; |
| | | for (HIDO_UINT32 i = 0U; i < _u32Len; i++) |
| | | { |
| | | checksum ^= (HIDO_UINT8)_pcData[i]; |
| | | } |
| | | return checksum; |
| | | } |
| | | |
| | | /******************************************************************************* |
| | | * Function Name : GPS_FormatGGA |
| | | * Description : 将fmin和fmig数据格式化为标准GGA报文(经纬度优先使用fmig数据) |
| | | * Input : _pstGPRMI - fmin数据 |
| | | * : _pstGPGIG - fmig数据(包含经纬度信息) |
| | | * : _pcBuffer - 输出缓冲区 |
| | | * : _u32BufferSize - 缓冲区大小 |
| | | * Output : _pcBuffer |
| | | * Return : 实际写入的字符数,失败返回0 |
| | | * Author : www.hido-studio.com |
| | | * Modified Date: : 2025年12月4日 |
| | | *******************************************************************************/ |
| | | HIDO_UINT32 GPS_FormatGGA(const ST_GPRMI *_pstGPRMI, const ST_GPGIG *_pstGPGIG, |
| | | HIDO_CHAR *_pcBuffer, HIDO_UINT32 _u32BufferSize) |
| | | { |
| | | if (_pstGPRMI == HIDO_NULL || _pstGPGIG == HIDO_NULL || _pcBuffer == HIDO_NULL) |
| | | { |
| | | return 0U; |
| | | } |
| | | |
| | | /* 转换UTC时间:厘秒(hhmmss.ss) → 字符串格式 */ |
| | | HIDO_UINT32 utc = _pstGPRMI->m_u32UTCTime; |
| | | HIDO_UINT32 hh = utc / 1000000U; |
| | | HIDO_UINT32 mm = (utc / 10000U) % 100U; |
| | | HIDO_UINT32 ss = (utc / 100U) % 100U; |
| | | HIDO_UINT32 cs = utc % 100U; |
| | | |
| | | /* 转换经纬度:优先使用fmig数据,度数 → 度分格式 */ |
| | | HIDO_CHAR latSign, lonSign; |
| | | HIDO_DOUBLE latitude, longitude; |
| | | |
| | | /* 优先使用fmig中的经纬度信息 */ |
| | | if (_pstGPGIG->m_bValid && _pstGPGIG->m_dLatitude != 0.0 && _pstGPGIG->m_dLongitude != 0.0) |
| | | { |
| | | latitude = _pstGPGIG->m_dLatitude; |
| | | longitude = _pstGPGIG->m_dLongitude; |
| | | } |
| | | else |
| | | { |
| | | /* fmig无效时回退到fmin数据 */ |
| | | latitude = _pstGPRMI->m_dLatitude; |
| | | longitude = _pstGPRMI->m_dLongitude; |
| | | } |
| | | |
| | | HIDO_DOUBLE latDDMM = GPS_ConvertLatToDDMM(latitude, &latSign); |
| | | HIDO_DOUBLE lonDDDMM = GPS_ConvertLonToDDDMM(longitude, &lonSign); |
| | | |
| | | /* 构建GGA报文主体(不含$和校验和) */ |
| | | HIDO_CHAR ggaBody[256]; |
| | | HIDO_INT32 bodyLen = snprintf(ggaBody, sizeof(ggaBody), |
| | | "GNGGA,%02u%02u%02u.%02u,%013.8f,%c,%014.8f,%c,%u,%02u,%.1f,%.1f,M,0.0,M,%.1f,", |
| | | hh, mm, ss, cs, /* UTC时间 */ |
| | | latDDMM, latSign, /* 纬度 (8位小数) */ |
| | | lonDDDMM, lonSign, /* 经度 (8位小数) */ |
| | | (HIDO_UINT32)_pstGPGIG->m_u8SolutionStatus, /* 定位质量 */ |
| | | (HIDO_UINT32)_pstGPGIG->m_u8SatelliteCount, /* 卫星数量 */ |
| | | (double)_pstGPGIG->m_fHDOP, /* HDOP */ |
| | | (double)_pstGPRMI->m_fAltitude, /* 海拔 */ |
| | | (double)_pstGPGIG->m_u8DifferentialAge /* 差分龄期 */ |
| | | ); |
| | | |
| | | if (bodyLen <= 0 || bodyLen >= (HIDO_INT32)sizeof(ggaBody)) |
| | | { |
| | | return 0U; |
| | | } |
| | | |
| | | /* 计算校验和 */ |
| | | HIDO_UINT8 checksum = GPS_CalculateNMEAChecksum(ggaBody, (HIDO_UINT32)bodyLen); |
| | | |
| | | /* 组装完整GGA报文:$GPGGA,...*CS */ |
| | | HIDO_INT32 totalLen = snprintf(_pcBuffer, _u32BufferSize, "$%s*%02X", ggaBody, checksum); |
| | | |
| | | if (totalLen <= 0 || totalLen >= (HIDO_INT32)_u32BufferSize) |
| | | { |
| | | return 0U; |
| | | } |
| | | |
| | | return (HIDO_UINT32)totalLen; |
| | | } |
| | | |
| | | /******************************************************************************* |
| | | * Function Name : GPS_UploadGGA |
| | | * Description : 每秒上传一次GGA报文到4G(拼接fmin和fmig数据) |
| | | * Input : None |
| | | * Output : None |
| | | * Return : None |
| | | * Author : www.hido-studio.com |
| | | * Modified Date: : 2025年12月4日 |
| | | *******************************************************************************/ |
| | | HIDO_VOID GPS_UploadGGA(HIDO_VOID) |
| | | { |
| | | static HIDO_CHAR ggaBuffer[256]; |
| | | |
| | | /* 检查fmin和fmig数据有效性 */ |
| | | if (l_stGPRMI.m_bValid == HIDO_FALSE || l_stGPGIG.m_bValid == HIDO_FALSE) |
| | | { |
| | | return; |
| | | } |
| | | |
| | | /* 格式化GGA报文 */ |
| | | HIDO_UINT32 ggaLen = GPS_FormatGGA(&l_stGPRMI, &l_stGPGIG, ggaBuffer, sizeof(ggaBuffer)); |
| | | |
| | | if (ggaLen > 0U) |
| | | { |
| | | /* 调用4G上传函数 */ |
| | | UDPClient_UploadGPS(ggaBuffer); |
| | | } |
| | | } |
| | | |