公开(公告)号：WO1992002084A1

公开(公告)日：1992-02-06

申请号：PCT/US1991005234

申请日：1991-07-24

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  KOENCK, Steven, E. ,  BUNTE, Alan, G. ,  CARGIN, Keith, K., Jr. ,  HANSON, George, E. ,  MAHANY, Ronald, L. ,  MILLER, Phillip ,  SALVAY, Steven, H.

IPC: H04B07/15

CPC classification number: H04W88/02 ,  G06F1/1626 ,  G06F1/163 ,  G06F1/1632 ,  G06F1/1684 ,  G06F1/1698 ,  G06F1/28 ,  G06F2200/1632 ,  G06K7/10574 ,  G06K7/10584 ,  G06K7/10702 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10811 ,  G06K7/10841 ,  G06K7/10851 ,  G06K7/10881 ,  G06K7/12 ,  G06K17/0022 ,  G06K2017/0051 ,  H04B2001/3894 ,  H04L2001/0097 ,  H04M7/006 ,  H04W28/14 ,  H04W40/00 ,  H04W88/04 ,  H04W88/06 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/142

Abstract: A digital data communication system enables host computer to communicate with a great number of data terminals having specified functions. Communication from the host computer proceeds through a medium or long distance, high power transceiver and through a multiplex system to one of a number of portable communication devices. The communication devices preferably contain internal power supplies, such as rechargeable NiCad battery packs. The devices may be carried on a person's belt, or may be mounted within or on a service vehicle, for example, a forklift truck for use in warehouse operations or a merchandise delivery route vehicle. The communication devices are adapted to function as communication relay devices between the host computer and selected ones of the data terminals. Each communication device includes a first type, low power transceiver to communicate within a first channel and at a low power transmission level with a selected number of the data terminals which also feature such first type transceivers. Each communication device further includes a high power transceiver to communicate within a second channel with the transceiver of the host computer. A microprocessor operated address controller allows the communication device to control low power communication among the data terminals by receiving and re-transmitting locally directed communications. The controller and the controlling protocol further relays data messages between the low power communication level and host computer. In operation the device receives data messages on one of the transceivers and transmits them on the other. The communication device further may contain sufficient memory capacity to permit periodic batch type data transmission between the host computer and the communication device. The ability to switch from a high power, high precision and high cost transmission system to a low power, low precision and low cost transmission system at the level at which a great number of data terminal devices are used provides system flexibility at a reasonable cost.

Abstract translation: 数字数据通信系统使得主机能够与具有指定功能的大量数据终端进行通信。 来自主计算机的通信通过中长距离，大功率收发器进行，并且通过多路复用系统到达许多便携式通信设备之一。 通信设备优选地包含诸如可再充电NiCad电池组的内部电源。 这些设备可以携带在人的皮带上，或者可以安装在服务车辆内或其上，例如用于仓库操作的叉车或商品运送路线车辆。 通信设备适于在主计算机和所选择的数据终端之间用作通信中继设备。 每个通信设备包括第一类型的低功率收发器，用于在具有这种第一类型收发器的选定数量的数据终端的第一信道内和低功率传输级别进行通信。 每个通信设备还包括大功率收发器，以在第二信道内与主计算机的收发信机进行通信。 微处理器操作的地址控制器允许通信设备通过接收和重新发送本地定向的通信来控制数据终端之间的低功率通信。 控制器和控制协议进一步在低功率通信级和主机之间中继数据报文。 在操作中，设备在其中一个收发器上接收数据消息，并在另一个收发器上传输。 通信设备还可以包含足够的存储器容量以允许主计算机和通信设备之间的周期性批量类型数据传输。 从大功率，高精度和高成本传输系统切换到低功耗，低精度和低成本传输系统的能力，在大量数据终端设备的使用水平上，以合理的成本提供了系统灵活性。

公开(公告)号：WO1991008604A1

公开(公告)日：1991-06-13

申请号：PCT/US1990007049

申请日：1990-12-03

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  KOENCK, Steven, E. ,  MILLER, Phillip ,  BECKER, Ronald, D.

IPC: H02J07/00

CPC classification number: H01M2/1055 ,  B60L2260/162 ,  G01R31/3624 ,  G01R31/3648 ,  G01R31/3655 ,  G01R31/3675 ,  G06F1/263 ,  H01M2/20 ,  H01M6/5044 ,  H01M6/505 ,  H01M10/425 ,  H01M10/4257 ,  H01M10/44 ,  H01M10/48 ,  H01M10/486 ,  H02J7/0004 ,  H02J7/0006 ,  H02J7/0011 ,  H02J7/0047 ,  H02J7/0068 ,  H02J7/0072 ,  H02J7/0073 ,  H02J7/0075 ,  H02J7/0077 ,  H02J7/0078 ,  H02J7/0091 ,  H02J7/0093 ,  H02J9/061 ,  Y10S320/10

Abstract: In a fast charging system, a hand-held computerized terminal with rechargeable batteries (15) may have volatile memory (21) and other components (21) requiring load current during charging. The system may automatically identify battery type and automatically adjust to different levels of load current. The battery temperature (11) may be brought into a relationship to surrounding temperature (13) such that by applying a suitable magnitude of current to the battery for a limited time, and observing any resultant temperature increase, any overcharge condition of the battery (15) can be determined. If the battery (15) is initially in the overcharge state or reaches such a state during fast charge, the system may automatically dynamically control the current supplied to the battery (15) such that battery temperature (11) is maintained generally above ambient temperature (13), thereby maintaining the battery in an optimum state of charge.

Abstract translation: 在快速充电系统中，具有可充电电池（15）的手持计算机化终端可以具有在充电期间需要负载电流的易失性存储器（21）和其他组件（21）。 系统可以自动识别电池类型，并自动调整到不同级别的负载电流。 电池温度（11）可以与周围温度（13）有关，使得通过在有限的时间内向电池施加合适的电流大小并且观察任何合成的温度升高，电池（15）的任何过充电状态 ）可以确定。 如果电池（15）最初处于过充电状态或在快速充电期间达到这种状态，则系统可以自动地动态地控制提供给电池（15）的电流，使得电池温度（11）一般保持在环境温度以上 13），从而将电池保持在最佳充电状态。