Abstract: An actuator system having an actuator with a rotatable shaft. The shaft may have a first running time to rotate from a first position to a second position in one direction. The shaft may have a second running time to rotate from a first position to a second position in another direction. The first and second running times may be separately adjustable. A motor may be connected through a gear train to the rotatable shaft. A processor may control a rotation of the motor and thus the running times of the shaft. The running times may be adjusted with signals to the processor from a remote controller connected to the processor via a communications bus.

Abstract: A damper controller may be configured to send damper control commands to open and close an outdoor air damper to provide free cooling as necessary to satisfy a temperature setpoint inside the building. In some cases, the damper controller may initiate a damper fault test to determine if a damper fault is present. The damper fault test may be based, at least in part, on an outdoor air temperature input, a discharge air temperature input, a commanded damper position, and a damper fault temperature threshold. If a damper fault is determined, the damper controller may send an alert indicative of a detected damper fault. In some cases, the damper fault test results may be weighted to reduce the false positives alerts.

Abstract: A device having a display and a user interface incorporating buttons, switches or keys that may be programmable for various functions related to the purpose of the device and its display. The keys may be programmed for virtually any functions available to or on the device. Also, some or all of the keys may be reprogrammed for other or new functions. The device may be programmed by the user with the keys on the device to obtain a custom design having functions assigned to the keys according to a particular design, desire or choice of the user. The keys may be situated on an area having touch sensitive technology such that touching a particular key will call forth a function that is assigned to the key. The keys may be in a touch sensitive area apart from the display or be fully or in partly on a touch sensitive display.

Abstract: An economizer controller with sensor calibration. A controller sensor may be used to measure a parameter. At the same time at the same location of the measurement with the controller sensor, a measurement of the same parameter may be made with a precision sensor. The difference between the two measurements may be saved to a controller memory as an offset. The offset may be used to compensate future measurements of the same parameter by the controller sensor. Additional offsets at various magnitudes may be obtained between the precision and the controller sensors for compensating subsequent measurements by the controller sensor. Measurements with the compensated sensor may be used for calibrating sensors in other economizer controllers, for example, at remote locations in the field.

Abstract: A system having a mixed air box with inputs of return air from a space or spaces of a building, and of outside air. The mixed air box may have an output of discharge air to the space or spaces of the building. The air from the output may be return air that is conditioned with cooling, heat, or outside air. A damper may be situated at the input of outside air to the mixed air box. A temperature sensor may be positioned at the input for outside air and at the output of discharge air. A cooling mechanism may be at the output of the discharge air. The temperature sensor may be downstream from the cooling mechanism. An economizer may have connections with the damper, the temperature sensor and the cooling mechanism.

Abstract: A device having a display and a user interface incorporating buttons, switches or keys that may be programmable for various functions related to the purpose of the device and its display. The keys may be programed for virtually any functions available to or on the device. Also, some or all of the keys may be reprogramed for other or new functions. The device may be programmed by the user with the keys on the device to obtain a custom design having functions assigned to the keys according to a particular design, desire or choice of the user. The keys may be situated on an area having touch sensitive technology such that touching a particular key will call forth a function that is assigned to the key. The keys may be in a touch sensitive area apart from the display or be fully or in partly on a touch sensitive display.

Abstract: A system having a mixed air box with inputs of return air from a space or spaces of a building, and of outside air. The mixed air box may have an output of discharge air to the space or spaces of the building. The air from the output may be return air that is conditioned with cooling, heat, or outside air. A damper may be situated at the input of outside air to the mixed air box. A temperature sensor may be positioned at the input for outside air and at the output of discharge air. A cooling mechanism may be at the output of the discharge air. The temperature sensor may be downstream from the cooling mechanism. An economizer may have connections with the damper, the temperature sensor and the cooling mechanism.

Abstract: A device having a display and a user interface incorporating buttons, switches or keys that may be programmable for various functions related to the purpose of the device and its display. The keys may be programmed for virtually any functions available to or on the device. Also, some or all of the keys may be reprogrammed for other or new functions. The device may be programmed by the user with the keys on the device to obtain a custom design having functions assigned to the keys according to a particular design, desire or choice of the user. The keys may be situated on an area having touch sensitive technology such that touching a particular key will call forth a function that is assigned to the key. The keys may be in a touch sensitive area apart from the display or be fully or in partly on a touch sensitive display.

Abstract: An economizer controller system having a plug and play recognition approach with an automatic user interface population mechanism. A check may be made for sensors connected to the controller. The control type of the sensors may be determined. The menu structure may be repopulated based on the control type. The user interface may then be updated. This approach may be repeated as needed.

Abstract: A wall module of a building control system is described that is configured to capture a thermal image using a passive infrared (PIR) sensor four or more individually readable pixels arranged in two or more rows and two or more columns.

Abstract: An economizer controller system having a plug and play recognition approach with an automatic user interface population mechanism. A check may be made for sensors connected to the controller. The control type of the sensors may be determined. The menu structure may be repopulated based on the control type. The user interface may then be updated. This approach may be repeated as needed.

Abstract: Methods and systems for automatically calibrating one or more damper positions of a demand control ventilation system are disclosed. In one illustrative embodiment, a demand control ventilation system includes a damper for controlling a flow of outside air into a building. A controller may be programmed to automatically execute a calibration algorithm from time to time to calibrate one or more calibration damper positions such that a predetermined flow of outside air is drawn through the damper and into the building at each of the one or more calibration damper positions. This calibration can, in some instances, help increase the efficiency and/or utility of the demand control ventilation system.

Abstract: A wall module for use in a building control system includes a wall module controller and a first communications module operatively coupled to the wall module controller for establishing wired communication with a remote building controller, and for receiving instructions and/or data from the remote building controller and for sending instructions and/or data to the remote building controller via the established wired communication. The wall module includes a second communications module operatively coupled to the wall module controller for establishing short range wireless communication having a communication range of less than 60 feet with a portable handheld device, and for receiving instructions from the portable handheld device and for sending data to the portable handheld device via the establishing short range wireless communication.

Abstract: A single infrastructure arrangement resulting from merging two or more sets of infrastructure. For example, an arrangement may incorporate an infrastructure or a set of infrastructure incorporating components with wireless access points and one or more sets of infrastructure with components having functional purposes, for example, such as those of heating, ventilation and air conditioning systems, smoke detection, security, and so on. An integrated infrastructure may encompass components having the functional purposes and the wireless access points.

Abstract: A device having a display and a user interface incorporating buttons, switches or keys that may be programmable for various functions related to the purpose of the device and its display. The keys may be programed for virtually any functions available to or on the device. Also, some or all of the keys may be reprogramed for other or new functions. The device may be programmed by the user with the keys on the device to obtain a custom design having functions assigned to the keys according to a particular design, desire or choice of the user. The keys may be situated on an area having touch sensitive technology such that touching a particular key will call forth a function that is assigned to the key. The keys may be in a touch sensitive area apart from the display or be fully or in partly on a touch sensitive display.

Abstract: A system having a mixed air box with inputs of return air from a space or spaces of a building, and of outside air. The mixed air box may have an output of discharge air to the space or spaces of the building. The air from the output may be return air that is conditioned with cooling, heat, or outside air. A damper may be situated at the input of outside air to the mixed air box. A temperature sensor may be positioned at the input for outside air and at the output of discharge air. A cooling mechanism may be at the output of the discharge air. The temperature sensor may be downstream from the cooling mechanism. An economizer may have connections with the damper, the temperature sensor and the cooling mechanism.

Abstract: A damper controller may be configured to send damper control commands to open and close an outdoor air damper to provide free cooling as necessary to satisfy a temperature setpoint inside the building. In some cases, the damper controller may initiate a damper fault test to determine if a damper fault is present. The damper fault test may be based, at least in part, on an outdoor air temperature input, a discharge air temperature input, a commanded damper position, and a damper fault temperature threshold. If a damper fault is determined, the damper controller may send an alert indicative of a detected damper fault. In some cases, the damper fault test results may be weighted to reduce the false positives alerts.

Abstract: A wall module for use with a building control system is customizable for a particular application though the selection of different overlays, displays, and/or expansion modules. The selected overlay and the display, when provided, together may form the user interface of the desired wall module configuration. The expansion module may be selected to provide additional desired functionality. Different overlays, displays and/or expansion modules may be selected for different wall modules within a building control system.

Abstract: A system and approach that may provide power to network switches of controllers in a failsafe manner. For instance, when a controller is receiving normal power, the controller may act as a power over Ethernet (POE) source that supplies power to its connected Ethernet devices as required. However, if power to a controller is lost, then Ethernet devices may switch to a powered device mode and use power from a neighboring device to keep active. Some power may be tapped for network switch operation from any network switch port receiving power from another device. This may allow communication to remain operational across multiple devices in a string of which some have lost a source of normal power.

Abstract: A power supply approach and mechanism for electrical devices using a polarity-insensitive two-wire bus that can carry data and power. However, some devices, such as CO2 sensors and secure digital memory cards, may need certain amounts of energy for measuring and writing data, respectively, that are more intense than the amount of energy available on the two-wire bus. Sensor, card and other device data may be conveyed by the two-wire bus. The present approach and mechanism may convert power from the two-wire bus into intense energy that can enable the sensors, cards and other devices to satisfactorily operate. A current limiter may be incorporated to protect the two-wire bus from loss of data and energy for slave devices on the bus during a period of charging a storage cell in that an empty huge storage capacitor connected to bus directly could short the bus.