pikapython/package/fuzzypid/fuzzy_PID.h

#ifndef _FUZZY_PID_H_
#define _FUZZY_PID_H_

#ifdef __cplusplus
extern "C" {
#endif

#include "PikaObj.h"
#include "math.h"
#include "stdio.h"
#include "stdlib.h"

// Fuzzy quantity fields
enum quantity_fields { qf_small = 5, qf_middle = 7, qf_large = 8 };

#define qf_default qf_middle

struct fuzzy {
    unsigned int input_num;
    unsigned int output_num;
    unsigned int fo_type;
    unsigned int* mf_type;
    int* mf_params;
    unsigned int df_type;
    int* rule_base;
    float* output;
};

struct PID {
    float kp;
    float ki;
    float kd;

    float delta_kp_max;
    float delta_ki_max;
    float delta_kd_max;

    float delta_kp;
    float delta_ki;
    float delta_kd;

    float error_max;
    float delta_error_max;

    float last_error;
    float current_error;

    float intergral;
    float intergral_limit;

    float dead_zone;
    float feed_forward;

    float output;

    int output_min_value;
    int output_middle_value;
    int output_max_value;

    float linear_adaptive_kp;

    struct fuzzy* fuzzy_struct;
};

#define NB -3
#define NM -2
#define NS -1
#define ZO 0
#define PS 1
#define PM 2
#define PB 3

// #define pid_debug_print
// #define pid_dead_zone
// #define pid_integral_limit

// #define fuzzy_pid_debug_print
// #define fuzzy_pid_dead_zone
// #define fuzzy_pid_integral_limit
// #define fuzzy_pid_rule_base_deep_copy

#define pid_params_count 7

#define torque_mode 1
#define position_mode 2
#define control_mode position_mode

#if control_mode == position_mode
#define max_error 100.0f
#define max_delta_error 100.0f
#else
#define max_error 12.0f
#define max_delta_error 12.0f
#endif

#define min_pwm_output 0
#define middle_pwm_output 500
#define max_pwm_output 1000

struct fuzzy* fuzzy_init(unsigned int input_num, unsigned int output_num);

void fuzzy_params_init(struct fuzzy* fuzzy_struct,
                       unsigned int mf_type,
                       unsigned int fo_type,
                       unsigned int df_type,
                       int mf_params[],
                       int rule_base[][qf_default]);

void fuzzy_control(float e, float de, struct fuzzy* fuzzy_struct);

struct PID* raw_pid_init(float kp,
                         float ki,
                         float kd,
                         float integral_limit,
                         float dead_zone,
                         float feed_forward,
                         float linear_adaptive_kp,
                         float error_max,
                         float delta_error_max,
                         int output_min_value,
                         int output_middle_value,
                         int output_max_value);

struct PID* raw_fuzzy_pid_init(float kp,
                               float ki,
                               float kd,
                               float integral_limit,
                               float dead_zone,
                               float feed_forward,
                               float error_max,
                               float delta_error_max,
                               float delta_kp_max,
                               float delta_ki_max,
                               float delta_kd_max,
                               unsigned int mf_type,
                               unsigned int fo_type,
                               unsigned int df_type,
                               int* mf_params,
                               int rule_base[][qf_default],
                               int output_min_value,
                               int output_middle_value,
                               int output_max_value);

// float params[pid_params_count] = {kp, ki, kd, integral_limit,
// dead_zonefeed_forward, linear_adaptive_kp};
struct PID* pid_init(float* params);

struct PID* fuzzy_pid_init(float* params,
                           float delta_k,
                           unsigned int mf_type,
                           unsigned int fo_type,
                           unsigned int df_type,
                           int mf_params[],
                           int rule_base[][qf_default]);

struct PID** pid_vector_init(float params[][pid_params_count],
                             unsigned int count);

struct PID** fuzzy_pid_vector_init(float params[][pid_params_count],
                                   float delta_k,
                                   unsigned int mf_type,
                                   unsigned int fo_type,
                                   unsigned int df_type,
                                   int* mf_params,
                                   int rule_base[][qf_default],
                                   unsigned int count);

float pid_control(float real, float idea, struct PID* pid);

float fuzzy_pid_control(float real, float idea, struct PID* pid);

int direct_control(int zero_value, int offset_value, pika_bool direct);

int pid_motor_pwd_output(float real,
                         float idea,
                         pika_bool direct,
                         struct PID* pid);

int fuzzy_pid_motor_pwd_output(float real,
                               float idea,
                               pika_bool direct,
                               struct PID* pid);

void delete_pid(struct PID* pid);

void delete_pid_vector(struct PID** pid_vector, unsigned int count);

#ifdef __cplusplus
}
#endif

#endif  //_FUZZY_PID_H_