JP2012060457A - Imaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To confirm an output current amount or output power amount of an AC in a utility power supply of an imaging device.SOLUTION: The imaging device includes a control portion inputting an AC 100 V, AC 117 V or AC 230 V and an imaging portion receiving supply of secondary-side AC voltage from the control portion. The imaging portion has a utility power supply AC output. The imaging device either detects a current amount of the utility power supply AC output and displays the detected current amount and a rated current amount of the utility power supply AC output on a screen, or calculates a power amount of the utility power supply AC output from the detected current amount of the utility power supply AC output and displays the calculated power amount and a rated power amount on the screen.

Description

The present invention relates to a display of a power source used in an imaging apparatus.

  Conventionally, in a television camera system, a main line video signal, a return video signal, an audio signal, a control serial data signal, and a control unit (Camera-Control-Unit: CCU) connected to an imaging unit (camera head), and A method of performing time-division bidirectional transmission of power transmission / reception with a transmission line of one triple coaxial (triax) cable is referred to as a digital triax system (Patent Document 1).

  In high-definition with 720 effective scanning lines and 1080 effective scanning lines, it is more common to use transmission / reception transmission and power supply transmission of main line video signals, send-back video signals, audio signals, and control serial data signals with an optical cable. If a cable is installed in the facility, use a digital triax system.

  The commercial AC input power supply voltage input to the control unit is generally AC100V, AC117V, and AC230V, and the power supply voltage supplied to the imaging unit is generally AC230V.

FIG. 3 is a block diagram showing power supply in the prior art.
2. Description of the Related Art Conventionally, in a camera system including an imaging unit and a control unit, AC 230 V is output as a power source for a prompt power source, a lighting fixture or the like as a camera adapter output, which is called a utility power source. The specification of this utility power supply is 100VA, but the amount of power actually used varies depending on the customer, and a high amount of power is required for prompting. In some cases, a low amount of power is sufficient for lighting equipment.

In the conventional camera system, the output current amount or the output power amount of the utility power AC230V cannot be confirmed.
For example, only 30 VA is actually used for the output power amount specification of 100 VA and more power is required. However, since the current amount of power cannot be confirmed, the necessary power cannot be supplied.

Japanese Patent Laid-Open No. 7-203399

  It is an object of the present invention to confirm the AC output current amount or output power amount of the utility power source of the imaging apparatus.

  In order to solve the above-described problems, the present invention includes a control unit that inputs a plurality of types of commercial AC power supply voltages and an imaging unit that receives supply of a secondary AC voltage from the general control unit. In an imaging device having an output, the amount of utility power AC output current is detected, the detected amount of utility power AC output current and the rated current amount are displayed on the screen, and the amount of utility power AC output current detected The imaging apparatus performs at least one of calculating a power amount of the utility power supply AC output and displaying the calculated power amount and the rated power amount on a screen.

  According to the present invention, it is possible to check the AC output current amount or the output power amount of the utility power source of the imaging apparatus.

The block diagram which shows supply of the power supply of the imaging device containing the control part and imaging part of one Example of this invention Schematic diagram of display on PIX MONITOR of AC 230V output of utility power supply of one embodiment of the present invention ((a) power amount display, (b) current amount display) Block diagram showing power supply in the prior art

  FIG. 1 is a block diagram showing an outline of the operation of an embodiment of the image pickup apparatus according to the present invention, and shows the power supply of the image pickup apparatus including the control unit and the image pickup section of the embodiment of the present invention. This will be described with reference to FIG. 2 which is a schematic diagram of the display on the PIX MONITOR of the AC 230V output of the utility power supply.

  In FIG. 1 of the block diagram illustrating the power supply of the image pickup apparatus including the control unit and the image pickup unit according to an embodiment of the present invention, an AC input power supply voltage (AC 117 to 230 V) is input from the AC inde 109 to the control unit 120. The power switch 110 (the switch is in the ON state) passes through the circuit breaker 111 and is input to the AC / DC power source 114. The AC / DC power supply 114 converts the AC input power supply voltage to DC + 12V.

  This DC + 12V is input to the power supply board 115, and each DC power supply required in the control unit 120 is generated in the power supply board 115.

  At the same time, the AC input power supply voltage passes through the AC-SW board 112 and is input to the primary side of the power supply transformer 113. 230 V AC is output from the secondary side of the power transformer 113, passes through the power board 115, and is transmitted to the imaging unit 119 via a cable.

The AC 230V input to the imaging unit 119 passes through the IF board 104, is converted to DC 300V by the AC / DC converter 103 in the AC-DC board 102, and is further converted to DC + 12V by the DC / DC converter 101.
This DC + 12V is used for generating a power supply for the camera and each power supply voltage in the camera adapter.

  At the same time, AC 230V passes through the IF board 104 and is output to the outside as a utility power source.

At this time, the consumption current flowing through the AC 230 V is detected by the AC current detection circuit 105 and converted into a digital value by the AD conversion IC 106. The CPU 108 calculates current consumption from the digital value and sends data to the FPGA 107.
The FPGA 107 calculates the power consumption of the utility power source from the data sent from the CPU 108, and transmits this calculated value to the control unit 120. In the control unit 120, the calculated value is displayed as a character MIX and displayed on the PIX MONITOR output.

For example, when the amount of current detected by the AC current detection circuit 105 is 0.3 A, the power amount of the utility power supply is AC 230 V × 0.3 A = 69 VA. These amounts of current or power are displayed on PIX MONITOR.
These current amounts or electric power amounts are displayed on the CHECK menu, and when displayed by the user, it is convenient to use.

101: DC / DC converter, 102: AC-DC board,
103: AC / DC converter, 104, 116: IF board,
105: AC current detection circuit, 106: A / D,
107, 117: FPGA, 108: CPU,
109: AC inlet, 110: Power switch,
111: Circuit breaker, 112: AC-SW board,
113: Power transformer, 114: AC / DC power supply,
115: Power supply board, 118: Coaxial connector,
119: Imaging unit, 120: Control unit 204: IF board, 211: Power supply board, 212: Imaging unit, 213: Control unit

Claims (1)

In an imaging apparatus having a control unit for inputting a plurality of types of commercial AC power supply voltages and an imaging unit for receiving supply of secondary AC voltage from the general control unit, and having an utility power supply AC output in the imaging unit,
Detecting the current amount of the utility power supply AC output and displaying the detected current amount of the utility power supply AC output and the rated current amount on the screen;
Calculating the power amount of the utility power supply AC output from the detected amount of current of the utility power supply AC output and displaying the calculated power amount and the rated power amount on the screen;
An imaging device that performs at least one of the following.