def to_json(self):
        """
        :return: str
        """
        json_dict = self.to_json_basic()
        json_dict['channel'] = self.channel
        json_dict['disable_inhibit_forced'] = self.disable_inhibit_forced
        json_dict['status'] = self.status
        json_dict['led_status'] = self.led_status
        json_dict['delay_time'] = self.delay_time
        return json.dumps(json_dict)