When.com Web Search

  1. Ads

    related to: construction gps time clock system with fingerprint reader and sensor and alarm

Search results

  1. Results From The WOW.Com Content Network
  2. SimplexGrinnell - Wikipedia

    en.wikipedia.org/wiki/SimplexGrinnell

    Simplex's time-division began to lose market share, but their newly founded fire alarm division significantly prospered. In 1970, Simplex introduced conventional control panels . In 1979, Simplex introduced the industry's first networked multiplex building control system that was capable of handling fire alarm, security, HVAC, synchronized time ...

  3. Guard tour patrol system - Wikipedia

    en.wikipedia.org/wiki/Guard_tour_patrol_system

    A guard tour patrol system is a system for logging the rounds of employees in a variety of situations such as security guards patrolling property, technicians monitoring climate-controlled environments, and correctional officers [1] checking prisoner living areas. It helps ensure that the employee makes their appointed rounds at the correct ...

  4. GNSS applications - Wikipedia

    en.wikipedia.org/wiki/GNSS_applications

    GNSS can be used as a reference clock for time code generators or Network Time Protocol (NTP) time servers. Sensors (for seismology or other monitoring application) can use GNSS as a precise time source. Time-division multiple access (TDMA) communications networks often rely on this precise timing to synchronize RF generating equipment, network ...

  5. Clock network - Wikipedia

    en.wikipedia.org/wiki/Clock_network

    The master clock in a clock network can receive accurate time in a number of ways: through the United States GPS satellite constellation, a Network Time Protocol server, the CDMA cellular phone network, a modem connection to a time source, or by listening to radio transmissions from WWV or WWVH, or a special signal from an upstream broadcast network.

  6. Indoor positioning system - Wikipedia

    en.wikipedia.org/wiki/Indoor_positioning_system

    An indoor positioning system (IPS) is a network of devices used to locate people or objects where GPS and other satellite technologies lack precision or fail entirely, such as inside multistory buildings, airports, alleys, parking garages, and underground locations.

  7. Time clock - Wikipedia

    en.wikipedia.org/wiki/Time_clock

    Electronic time clock. A time clock, sometimes known as a clock card machine, punch clock, or time recorder, is a device that records start and end times for hourly employees (or those on flexi-time) at a place of business. In mechanical time clocks, this was accomplished by inserting a heavy paper card, called a time card

  1. Ads

    related to: construction gps time clock system with fingerprint reader and sensor and alarm