small_water_meter_4g_src/Users/tdc_tof/tdc_itf.c

#include <stdint.h>
#include "board.h"
#include "tdc_tof.h"
#include "bill.h"
#include "check.h"
#include "param.h"
#include "alarm.h"
#include "stat.h"

// resistence(ohm) from 0 dgree to 55 dgree
static const uint16_t NTC50KOhmX10Ary[] ={
2749, 2633, 2521, 2415, 2314, 2218, 2127, 2040,
1956, 1877, 1802, 1729, 1661, 1595, 1532, 1472,
1415, 1360, 1308, 1258, 1210, 1164, 1120, 1079,
1038, 1000, 963,  928,  894,  862,  831,  801,
773,  745,  719,  694,  670,  648,  624,  603,
583,  563,  544,  526,  508,  491,  475,  459,
444,  430,  416,  403,  390,  377,  365,  354
};

// tangent slope from 0 dgree to 55 dgree
static const float NTC50KSlpAry[] ={
-0.00855432f, -0.00898473f, -0.00944287f, -0.00991080f, -0.01041667f, -0.01091703f, -0.01146789f, -0.01201923f,
-0.01261034f, -0.01322751f, -0.01386963f, -0.01451379f, -0.01522070f, -0.01592357f, -0.01666667f, -0.01748252f,
-0.01824818f, -0.01912046f, -0.02000000f, -0.02096436f, -0.02178649f, -0.02283105f, -0.02392344f, -0.02493766f,
-0.02604167f, -0.02717391f, -0.02840909f, -0.02967359f, -0.03095975f, -0.03225806f, -0.03355705f, -0.03521127f,
-0.03649635f, -0.03816794f, -0.03968254f, -0.04149378f, -0.04310345f, -0.04484305f, -0.04672897f, -0.04878049f,
-0.05076142f, -0.05263158f, -0.05494505f, -0.05681818f, -0.05952381f, -0.06172840f, -0.06410256f, -0.06666667f,
-0.06944444f, -0.07194245f, -0.07462687f, -0.07751938f, -0.08064516f, -0.08333333f, -0.08771930f, -0.00282486f
};

#define NTC50K_SUM  (sizeof(NTC50KOhmX10Ary)/sizeof(uint16_t))

// start temperature of each row(no end temp)
//modified by yuewei 20260409 start
//static const float RowTemp_Ary[] = {
//    5.0f, 15.0f, 25.0f, 35.0f, 45.0f
//};
/*
static const float RowTemp_Ary[] = {
    10.0f, 15.0f, 25.0f
};
*/

//modified by yuewei 20260520 start
#if 1
//#define ROW_NUM     (sizeof(RowTemp_Ary)/sizeof(float))
//#define COL_NUM     (12)

const uint16_t Quad_Cell_NUM = 30; 

//Quad_Cell_t Quad_Cell_Ary[ROW_NUM*COL_NUM] = 
Quad_Cell_t Quad_Cell_Ary[30] = 
{
    //温度补偿系数，总共10个温度点
    //格式：{温度, {常数：m, 系数：k}}
    //温度：5C -> 50C
    //介质：纯水，Marczak公式理论声速归一化（25℃=1497m/s，k=1.0）
    {5.000000, {0.000000f,0.952900f}},
    {10.000000,{0.000000f,0.967000f}},
    {15.000000,{0.000000f,0.979300f}},
    {20.000000,{0.000000f,0.990400f}},
    {25.000000,{0.000000f,1.000000f}},
    {30.000000,{0.000000f,1.008300f}},
    {35.000000,{0.000000f,1.015500f}},
    {40.000000,{0.000000f,1.021700f}},
    {45.000000,{0.000000f,1.026500f}},
    {50.000000,{0.000000f,1.030600f}},

    //流速等级补偿系数，总共20个流速点
    //{流速等级, {常数：m, 系数：k}}，注意：流速等级如果设置0，则表示没有流量点需要修正
    //第1~10个流速点
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},

    //第11~20个流速点
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}},
    {0.000000,{0.000000f,0.000000f}}
};
#endif
//modified by yuewei 20260520 end

double FlowVol = 0.0f;
double FwCumFlow;
double BwCumFlow;
double FlowTestCoe = 1.0f;

float BwFlowThres = (-1.0f) * (Q1 * 1.6f * 1000.0f * 1000.0f / 3600.0f); //less -Q2

tdc_itf_t TdcItf = {
    .bw_flow_flag = 0,
    .ch_bit_map   = 3,//yw 0->3, 3->15
    .blank_flag   = 0,

    .pipe_coe = 0.1168745, //modified by yuewei 20260610 2.288299->0.1168745
    .path_skew = {0.000f, 0.000f, 0.000f, 0.000f},

    .ch_num = 1,

    .mux_ch_no = {0, 1, 2, 3},
    .mux_switch = 1,

    .ntc_num       = NTC50K_SUM,
    .ntc_ohm_ary   = NTC50KOhmX10Ary,
    .ntc_slp_ary   = NTC50KSlpAry,

    //modified by yuewei 20260520 start
    //.row_num       = ROW_NUM,
    //.col_num       = COL_NUM,
    //.row_temp_ary  = RowTemp_Ary,
    //modified by yuewei 20260520 end
		
    .quad_cell_ary = Quad_Cell_Ary,

    .set_blank    = set_pipe_blank,
    .clr_blank    = clr_pipe_blank,
    .flow_vol     = tdc_flow_itf,
    .check_flow   = SetCheckFlow
};

float var_dtof_buf[180];
uint32_t test_var_flag = 0;
uint32_t test_var_cnt = 0;
#define VAR_TEST_BUF_SIZE (sizeof(var_dtof_buf) / sizeof(var_dtof_buf[0]))

void test_dtof_var(void) {
    double var = 0;
    double avg = 0;
    int i;
    int cnt = VAR_TEST_BUF_SIZE;

    if (test_var_flag == 0) {
        return;
    }

    var_dtof_buf[test_var_cnt % VAR_TEST_BUF_SIZE] = get_diff_tof();
    test_var_cnt++;

    if (test_var_cnt > cnt) {
        test_var_flag = 0;
        test_var_cnt = 0;

        for (i = 0; i < cnt; i++) {
            avg += var_dtof_buf[i];
        }

        avg /= cnt;
        for (i = 0; i < cnt; i++) {
            var += (var_dtof_buf[i] - avg) * (var_dtof_buf[i] - avg);
        }
        var /= cnt - 1;

        printf("\nThe average of %ds dtof is %lfps\n", cnt, avg * 1000);
        printf("The var of %ds dtof is %lf(unit: 10ps)\n", cnt, var * 10000);
    }
}

void tdc_flow_itf(double flow_vol, float tmp_float) {
    FlowVol = flow_vol;

    //add by yuewei 20260519
    float rtc_interrupt_time_seconds = get_rtc_interrupt_time();

#if defined(CHECK_CORRECT_ENABLE)
    //modified by yuewei 20260914 start
    //float FlowCorrFactor = CheckFlowCorrectFactor(WaterTemp, (uint16_t)tmp_float);
    float FlowCorrFactor = CheckFlowCorrectFactor(WaterTemp, (uint16_t)fabs(tmp_float));
    //modified by yuewei 20260914 end
    FlowVol *= FlowCorrFactor;    // unit:cm^3/s = ml/s
#endif
	//20260429
    //add by yuewei 20260327 start
    //static double last_vol = 0.0f;
    //FlowVol = last_vol * (1.0f - VOL_FILTER_ALPHA) + FlowVol * VOL_FILTER_ALPHA;
    //last_vol = FlowVol;
    //add by yuewei 20260327 end

    //LOG("vol = %.6f\n",FlowVol*0.000001f * 3600);

		//20260429
		/*
    if (FlowVol > BwFlowThres) {
        CumFlow += FlowVol/2;
        TdcItf.bw_flow_flag = 0;
    } else {
        TdcItf.bw_flow_flag = 1;
    }
		
    if (FlowVol >= 0) {
        FwCumFlow += FlowVol/2;
        SetBillVol(FlowVol, 0);
    } else {
        BwCumFlow += (0 - FlowVol/2);
        SetBillVol(0, (0 - FlowVol));
    }
		*/
    //float f_tdc_sample_times_per_second = TDC_SAMPLE_TIMES_PER_SECOND == 0 ? 1 : TDC_SAMPLE_TIMES_PER_SECOND;//deal TDC_SAMPLE_TIMES_PER_SECOND = 0
  
		CumFlow += FlowVol * rtc_interrupt_time_seconds;
		
        if (FlowVol >= 0) 
        {
            TdcItf.bw_flow_flag = 0;
            FwCumFlow += FlowVol * rtc_interrupt_time_seconds;
            SetBillVol(FlowVol, 0);
        } 
        else 
        {
            TdcItf.bw_flow_flag = 1;
            BwCumFlow += (0 - FlowVol * rtc_interrupt_time_seconds);
            SetBillVol(0, (0 - FlowVol));
        }
		
    //modified by yuewei 20260319 start
    //SetBillCumFlow(CumFlow, FwCumFlow, BwCumFlow);
    SetCheckFlow(CumFlow, tmp_float, WaterTemp);
    SetStatFlow(FlowVol);
    //modified by yuewei 20260319 end
}

void set_pipe_blank(uint8_t ch) {
    if ((TdcItf.blank_flag & (0x00000001 << ch)) == 0) {
        Alarm(ERR_CH0 + ch, 1, ch);
    }

    if (TdcItf.blank_flag == (TdcItf.ch_bit_map & ~(0x00000001 << ch))) {
        Alarm(ERR_BLANK_PIPE, 1, TdcItf.ch_bit_map);
    }
    TdcItf.blank_flag |= (0x00000001 << ch);
}

void clr_pipe_blank(uint8_t ch) {
    if ((TdcItf.blank_flag & (0x00000001 << ch)) != 0) {
        Alarm(ERR_CH0 + ch, 0, ch);
    }

    if (TdcItf.blank_flag == (0x00000001 << ch)) {
        Alarm(ERR_BLANK_PIPE, 0, 0);
    }
    TdcItf.blank_flag &= ~(0x00000001 << ch);
}