And door hardware in

本文探讨了彼得堡上流社会的沙龙生活,特别是Anna Pavlovna和Ellen的聚会,反映了当时的政治氛围和对拿破仑的看法。Anna Pavlovna的圈子对拿破仑的成功表示不可思议的惊讶,而Ellen的社交圈则热情讨论法国和俄国的关系,遗憾两国的冲突,并预测和平的到来。

Dominated by matter and such as are dominated by form. To the latter class one may refer the life of Petersburg, especially in its drawing-rooms, as distinguished from the life of the country, of the district, of the province, or even of Moscow.

 

That life of the drawing-rooms is unchanging. Between the years and we had made peace with Bonaparte and quarrelled with him again; we had made new constitutions and unmade them again, but the salons of Anna Pavlovna and of Ellen were precisely as they had beenthe former seven, the latter five yearsbefore. Anna Pavlovna's circle were still speaking with incredulous wonder of Bonaparte's successes; and saw in his successes, and door hardware in the submissive attitude of the sovereigns of Europe, a malicious conspiracy, the sole aim of which was to give annoyance and anxiety to the court circle of which Anna Pavlovna was the representative.

 

The set that gathered about Ellen, whom no less a person than Rumyantsev condescended to visit, and looked on as a remarkably intelligent woman, talked in with the same enthusiasm as in, of the great nation, and the great man, and regretted the breach with France, which must, they believed, shortly end in peace. Of late after the Tsar's return from the army, some increase of excitement was perceptible in these antagonistic salons, and they made something like demonstrations http://www.door-fitting.com/

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转载于:https://www.cnblogs.com/wt152/archive/2013/04/28/3048862.html

library IEEE; use IEEE.STD_LOGIC_1164.ALL; use IEEE.NUMERIC_STD.ALL; entity IR_Decoder is Port ( clk : in STD_LOGIC; reset : in STD_LOGIC; ir_input : in STD_LOGIC; floor_request : out STD_LOGIC_VECTOR(5 downto 0); door_open_req : out STD_LOGIC; door_close_req : out STD_LOGIC; emergency_req : out STD_LOGIC; data_valid : out STD_LOGIC ); end IR_Decoder; architecture Behavioral of IR_Decoder is constant LEADER_PULSE_MIN : integer := 2000; -- 引导脉冲最小长度(单位:时钟周期) constant BIT_1_THRESHOLD : integer := 20; -- 逻辑"1"的脉冲宽度阈值 -- 电梯指令编码定义(自定义协议) constant CMD_FLOOR_1 : STD_LOGIC_VECTOR(7 downto 0) := x"11"; constant CMD_FLOOR_2 : STD_LOGIC_VECTOR(7 downto 0) := x"22"; constant CMD_FLOOR_3 : STD_LOGIC_VECTOR(7 downto 0) := x"33"; constant CMD_FLOOR_4 : STD_LOGIC_VECTOR(7 downto 0) := x"44"; constant CMD_FLOOR_5 : STD_LOGIC_VECTOR(7 downto 0) := x"55"; constant CMD_FLOOR_6 : STD_LOGIC_VECTOR(7 downto 0) := x"66"; constant CMD_DOOR_OPEN : STD_LOGIC_VECTOR(7 downto 0) := x"77"; constant CMD_DOOR_CLOSE : STD_LOGIC_VECTOR(7 downto 0) := x"88"; constant CMD_EMERGENCY : STD_LOGIC_VECTOR(7 downto 0) := x"99"; -- 接收状态信号 signal pulse_counter : integer range 0 to 500000 := 0; -- 脉冲宽度计数器(最大500000个时钟周期) signal bit_counter : integer range 0 to 31 := 0; -- 已接收位数计数器(32位协议) signal data_shift_reg : STD_LOGIC_VECTOR(31 downto 0) := (others => '0'); -- 数据移位寄存器 signal last_input : STD_LOGIC := '1'; -- 上一时钟周期的输入状态(用于边沿检测) signal receiving : STD_LOGIC := '0'; -- 接收状态标志(1=正在接收数据) -- 解码信号 signal ir_data : STD_LOGIC_VECTOR(7 downto 0) := (others => '0'); -- 解码后的8位指令 signal valid_reg : STD_LOGIC := '0'; -- 数据有效寄存器 begin process(clk, reset) begin if reset = '1' then pulse_counter <= 0; bit_counter <= 0; receiving <= '0'; valid_reg <= '0'; last_input <= '1'; data_shift_reg <= (others => '0'); floor_request <= (others => '0'); door_open_req <= '0'; door_close_req <= '0'; emergency_req <= '0'; -- 时钟上升沿触发 elsif rising_edge(clk) then valid_reg <= '0'; -- 数据有效信号默认为低 door_open_req <= '0'; -- 开门请求默认为无效 door_close_req <= '0'; -- 关门请求默认为无效 emergency_req <= '0'; -- 紧急请求默认为无效 -- 边沿检测(下降沿检测:1→0表示红外信号开始) if last_input = '1' and ir_input = '0' then receiving <= '1'; pulse_counter <= 0; -- 重置脉冲计数器 end if; last_input <= ir_input; -- 保存当前输入状态 if receiving = '1' then pulse_counter <= pulse_counter + 1; -- 上升沿检测(红外信号结束:0→1) if last_input = '0' and ir_input = '1' then -- 长脉冲检测(引导脉冲) if pulse_counter > LEADER_PULSE_MIN then bit_counter <= 0; -- 开始新数据帧 -- 数据位处理(32位协议) elsif bit_counter < 32 then -- 判断逻辑值(长脉冲=1,短脉冲=0) if pulse_counter > BIT_1_THRESHOLD then data_shift_reg <= data_shift_reg(30 downto 0) & '1'; -- 移入1 else data_shift_reg <= data_shift_reg(30 downto 0) & '0'; -- 移入0 end if; bit_counter <= bit_counter + 1; -- 位计数器递增 -- 完整接收32位数据 if bit_counter = 31 then receiving <= '0'; -- 结束接收状态 -- 校验数据(前8位是后8位的反码) if data_shift_reg(31 downto 24) = not data_shift_reg(23 downto 16) then -- 提取有效指令(中间8位) ir_data <= data_shift_reg(15 downto 8); valid_reg <= '1'; -- 数据有效标志 case data_shift_reg(15 downto 8) is when CMD_FLOOR_1 => floor_request <= "000001"; -- 1层 when CMD_FLOOR_2 => floor_request <= "000010"; -- 2层 when CMD_FLOOR_3 => floor_request <= "000100"; -- 3层 when CMD_FLOOR_4 => floor_request <= "001000"; -- 4层 when CMD_FLOOR_5 => floor_request <= "010000"; -- 5层 when CMD_FLOOR_6 => floor_request <= "100000"; -- 6层 when CMD_DOOR_OPEN => door_open_req <= '1'; -- 开门 when CMD_DOOR_CLOSE => door_close_req <= '1'; -- 关门 when CMD_EMERGENCY => emergency_req <= '1'; -- 紧急停止 when others => null; end case; end if; end if; end if; pulse_counter <= 0; end if; end if; end if; end process; -- 数据有效信号直接输出 data_valid <= valid_reg; end Behavioral;帮我解读这段代码越详细越好,介绍它是怎么完成功能的
06-07
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