The full control and monitoring of equipment is performed through the master SAS terminals or the remote SAS terminal for the local AFC equipment. However, for backup control, there are mechanical switches in the GSCR of the master station and in the FCR of the satellite stations when the normal control from SAS is unavailable. The normal method of controlling AFC equipment shall be commands from the SAS terminal over a non-time critical segment of the Station LAN. The SAS shall be able to control the mode of operation of the AFC equipment for a group of stations, including master and satellite stations. These modes shall comprise normal operations and emergency operations, including special station events due to failed trains and conditions requiring full or partial suspension of fare collection. The SAS shall be able to provide 15 minutes traffic figure for monitoring.

AFC设备的完全控制和监控通过主SAS终端或本地AFC设备的远程SAS终端执行。然而，在SAS的正常控制不可用时，主站的GSCR和卫星站的FCR上有机械开关用于备份控制。控制AFC设备的正常方法应该是SAS终端通过车站局域网的非时间关键段发送命令。 SAS应该能够控制一组站（包括主站和卫星站）的AFC设备的操作模式。这些模式应包括正常操作和紧急操作，包括由于列车故障和需要全面或部分暂停收费的情况下的特殊车站事件。 SAS应该能够提供15分钟的流量数据以供监控。

相关问题

what is the instruction of cortex-M0 for divide calculation

The Cortex-M0 processor does not have a hardware divider, which means that division calculations are performed using software routines. There are various algorithms for performing software division, but one commonly used method is called "long division".

In long division, the divisor is repeatedly subtracted from the dividend until the remainder is less than the divisor. The number of times the divisor is subtracted is the quotient, and the remainder is the final result. This process is repeated until all digits of the dividend have been processed.

Here is a sample code for performing integer division on Cortex-M0 using long division:

int divide(int dividend, int divisor)
{
   int quotient = 0, remainder = 0;
   int sign = ((dividend < 0) ^ (divisor < 0)) ? -1 : 1;

   // convert both operands to positive
   if (dividend < 0) dividend = -dividend;
   if (divisor < 0) divisor = -divisor;

   // perform long division
   for (int i = 31; i >= 0; i--)
   {
      remainder <<= 1;   // left shift remainder
      remainder |= (dividend >> i) & 1;  // add next bit from dividend to remainder

      if (remainder >= divisor)
      {
         remainder -= divisor;
         quotient |= (1 << i);  // set corresponding bit in quotient
      }
   }

   // apply sign
   quotient = sign * quotient;

   return quotient;
}

Note that this code assumes that both the dividend and divisor are 32-bit integers. It also handles negative operands correctly and applies the correct sign to the result. However, it may not be the most efficient implementation and may need to be optimized for specific use cases.

The truth value of a DataFrame is ambiguous.

This error message usually occurs when you are trying to perform a boolean operation on a Pandas DataFrame and the result cannot be unambiguously determined.

It can happen if you are trying to check if a DataFrame is empty or if a condition is true for the entire DataFrame. In these cases, the DataFrame might contain both True and False values, but the overall truth value cannot be determined without additional information.

To resolve this issue, you can try to specify the axis along which the operation should be performed or use a more specific operation that returns a single boolean value. For example, you can use the `.all()` method to check if all values in the DataFrame are True or the `.any()` method to check if any value is True.