Method and apparatus for controlling distributed electrical loads

    公开(公告)号:US4367414A

    公开(公告)日:1983-01-04

    申请号:US352578

    申请日:1982-02-26

    IPC分类号: H02J13/00 H05B37/02 H02J3/10

    摘要: An apparatus for controlling distributed electrical loads including a microprocessor based central controller coupled via a twisted pair bidirectional data line to a plurality of microcomputer based transceiver decoders. Each transceiver decoder is coupled to a plurality of relays, each relay associated with a particular load to be controlled. Override switches and sensors, coupled to transceiver decoders provide override requests and information related to ambient conditions at the site of a load. A user defined data base includes sub-sets of relays called sectors, patterns of relay states, remote switches, a time dependent schedule and condition responses. A communication protocall and arbitration scheme provide for interactive communication between the central controller and each transceiver decoder with interfacing with the operation of any other transceiver decoder. Enhanced data storage capacity is achieved through dynamic allocation of memory space for pattern data.

    Load output level control circuit
    72.
    发明授权
    Load output level control circuit 失效
    负载输出电平控制电路

    公开(公告)号:US4345200A

    公开(公告)日:1982-08-17

    申请号:US242782

    申请日:1981-03-11

    IPC分类号: H02M5/297 G05B24/02

    CPC分类号: H02M5/297

    摘要: A circuit, for controlling the output level of a load circuit connected thereto, has a single input for receiving a control signal to provide both a selectable level on/off output signal at a first output connected to an on/off terminal of the load circuit, and a pair of essentially equal control currents drawn in shunt from a pair of output terminals connected to load output-level-setting input terminals. The shunt control currents are provided by a current-mirror circuit having a pair of substantially identical current sinks, each responsive to an input signal applied thereto in parallel from the single control circuit input.

    摘要翻译: 用于控制与其连接的负载电路的输出电平的电路具有用于接收控制信号的单个输入,以在连接到负载电路的开/关端的第一输出端提供可选择的电平开/关输出信号 以及从连接到负载输出电平设置输入端子的一对输出端子分流引出的一对基本上相等的控制电流。 分流控制电流由具有一对基本上相同的电流吸收器的电流镜电路提供,每个电流检测器响应于从单个控制电路输入并行施加到其上的输入信号。

    Method of interfacing remote units to a central microprocessor
    73.
    发明授权
    Method of interfacing remote units to a central microprocessor 失效
    将远程单元连接到中央微处理器的方法

    公开(公告)号:US4310896A

    公开(公告)日:1982-01-12

    申请号:US93683

    申请日:1979-11-13

    摘要: A method for interfacing two remote electronic units uses four lines and a handshaking routine including the steps of: causing the first unit to simultaneously transmit a strobe signal on one of the four lines and a signal representing one bit of the information to be communicated on a second of the four lines, sending the two signals continuously until acknowledged by the second unit; causing the second unit, when it receives these signals, simultaneously to transmit a strobe signal on a third line and a data signal, which may or may not be the same as that on the second line, on the fourth line, the third and fourth signals being transmitted continuously until their receipt is acknowledged; terminating transmission of the first and second signals when the first unit receives the third and fourth signals; and terminating the transmission of the third and fourth signals when the second unit determines that the first and second signals are no longer being transmitted. This routine is used for transmission of each bit of information to be communicated. If desired, a fifth line may be provided to carry a signal by means of which the first unit can reset the second unit so that transmission of the communication can be reinitiated in the event of difficulties.

    摘要翻译: 用于连接两个远程电子单元的方法使用四条线和一个握手程序,包括以下步骤:使第一单元同时在四条线之一上发送选通信号,以及一个信号,代表要传送的信息的一位 四行中的第二行,连续发送两个信号,直到第二个单元确认; 使得第二单元在接收到这些信号时同时在第三行上发送选通信号和在第四行上传送与第二行相关的数据信号,第三和第四行 信号被连续发送,直到收到确认为止; 当第一单元接收到第三和第四信号时终止第一和第二信号的传输; 以及当所述第二单元确定所述第一和第二信号不再被发送时终止所述第三和第四信号的传输。 该程序用于传送要传送的每一位信息。 如果需要,可以提供第五行以携带信号,通过该信号第一单元可以重置第二单元,使得在困难的情况下可以重新发送通信。

    Programmable energy load controller system and methods
    74.
    发明授权
    Programmable energy load controller system and methods 失效
    可编程能量负载控制器系统及方法

    公开(公告)号:US4213182A

    公开(公告)日:1980-07-15

    申请号:US966816

    申请日:1978-12-06

    摘要: A programmable energy load controller system, allowing each of a multiplicity of energy loads to be established in a selected one of an unenergized condition and a plurality of energized conditions, utilizes a central microcomputer facility in communication with a selected one of a plurality of remotely located load control processors, each configured with a unique address and capable of selectively energizing a plurality of energy loads coupled thereto under control of the central facility. The central facility includes at least one user input device, allowing a plurality of maps of load conditions, established in accordance with a user-selectable criteria, such as time-of-day and day-of-week requirements, to be loaded into a data storage associated with the central computer. A real time clock means are utilized in association with the computer and the memory to enable the desired map of load energization under the selected criteria, with means being provided for entering, on a high priority basis, overrides to at least a selected portion of the map currently implemented. Programmable energy load control methods are also disclosed.

    摘要翻译: 一种可编程能量负载控制器系统,其允许以未激励状态和多个通电状态中选定的一个中的每一个能量负载建立每个能量负载控制器系统,利用中央微计算机设备与多个远程位置 负载控制处理器,每个配置有唯一地址,并能够在中央设施的控制下选择性地激励与其耦合的多个能量负载。 中央设施包括至少一个用户输入设备,允许根据用户可选择的标准(例如日期和星期几的要求)建立的多个负载状况图被加载到 与中央计算机相关联的数据存储。 与计算机和存储器相关联地使用实时时钟装置,以使得能够在所选择的标准下进行负载通电的期望映射,其中提供了用于在高优先级的基础上进入至少所选择的部分 地图目前实施。 还公开了可编程能量负载控制方法。

    Preamplifier for analog to digital converters
    75.
    发明授权
    Preamplifier for analog to digital converters 失效
    前置放大器用于模数转换器

    公开(公告)号:US4138665A

    公开(公告)日:1979-02-06

    申请号:US835068

    申请日:1977-09-21

    IPC分类号: H03M1/00 H05K13/02 H03K13/02

    CPC分类号: H05K13/02 H03M1/52

    摘要: A preamplifier using charge transfer techniques is formed on the same chip as a charge transfer analog to digital converter. The preamplifier then couples low level output sensors directly to the converter without need for a costly interfacing amplifier.

    摘要翻译: 使用电荷转移技术的前置放大器形成在与电荷转移模数转换器相同的芯片上。 然后,前置放大器将低电平输出传感器直接耦合到转换器,而不需要昂贵的接口放大器。

    Automatic polarity sensing analog-to-digital converter
    76.
    发明授权
    Automatic polarity sensing analog-to-digital converter 失效
    自动极性感测模数转换器

    公开(公告)号:US4070666A

    公开(公告)日:1978-01-24

    申请号:US698012

    申请日:1976-06-21

    IPC分类号: H03M1/44 H03M1/00 H03K13/02

    CPC分类号: H03M1/1215

    摘要: An analog-to-digital converter of the metered charge transfer type is provided including an automatic polarity sensing circuit which selectively connects first and second input terminals to a charge storage location at appropriate times during a measurement cycle in order to insure that proper polarity relationships are maintained.

    摘要翻译: 提供了计量电荷转移类型的模数转换器,其包括自动极性检测电路,其在测量周期期间的适当时间选择性地将第一和第二输入端子连接到电荷存储位置,以确保适当的极性关系为 保持。

    High voltage driver circuit
    77.
    发明授权
    High voltage driver circuit 失效
    高压驱动电路

    公开(公告)号:US4070600A

    公开(公告)日:1978-01-24

    申请号:US753773

    申请日:1976-12-23

    CPC分类号: H03K5/023

    摘要: A semiconductor switching circuit utilizes a relatively low breakdown voltage transistor for switching between a higher and a lower voltage by switching between a first conducting state of said transistor which is a "turned-on" state and a second state which is a "breakdown" state. The switching circuit is especially useful for the operation of display devices.

    摘要翻译: 半导体开关电路利用相对较低的击穿电压晶体管,通过在“导通”状态的所述晶体管的第一导通状态与作为“分断”状态的第二状态之间切换,在高电压和低电压之间切换 。 开关电路对于显示装置的操作特别有用。